This was CNBC's live blog tracking developments on the war in Ukraine. See here for the latest updates. 

Ukrainian and Russian leaders have turned their attention — publicly at least — toward the escalation of violence and bloodshed in Israel and Gaza.

Ukraine has pledged its support for Israel and condemned Palestinian militant group Hamas, which launched unexpected and large-scale attacks against Israel on Saturday, while Russia called for a cease-fire. The conflict puts Russia and Ukraine in a somewhat awkward position, however.

For Kyiv, the nascent war in Israel distracts from its own plight and war, and its biggest backer, the United States, is now offering military support to two allies. And Russia — which has traditionally trodden a fine diplomatic line between Israel and fellow oil-producing Arab countries — has a close relationship with Iran, which funds Hamas, putting Moscow in a more ambiguous and awkward position.

On Saturday, Russia's Foreign Ministry blamed the West for blocking international mediators, including Russia. The Kremlin said Monday it was "extremely concerned" by the situation but said President Vladimir Putin did not plan to contact Israeli or Palestinian officials to discuss the security crisis.

Russia is likely to try to use the eruption of violence in Israel to distract from its operations in Ukraine, analysts at the Institute for the Study of War said.

Zelenskyy: Romania will be the F-16 jet training ground for Ukrainian pilots

A centre for training Ukrainian pilots to fly F-16 jets is being established in Romania, Ukrainian President Volodymyr Zelenskyy wrote on X, formerly known as Twitter.

Zelenskyy and his Romanian counterpart, Klaus Iohannis, agreed that Ukrainian pilots would be enrolled in the first wave of training, he wrote.

The two leaders signed a bilateral declaration on their security cooperation, which included improving transport, facilitating border crossings and opening new checkpoints.

Zelenskyy and Iohannis also "condemned the terrorist attack on Israel," with Zelenskyy saying the entire world must condemn terror and all those who support it.

— Hannah Ward-Glenton

Friends with sworn enemies, Russia must choose where its loyalty lies in the Middle East

The outbreak of bloodshed, violence and war between Israel and Hamas has put Russia in an awkward position, with Moscow traditionally treading a fine diplomatic line between Israel and its allies in the Middle East.

Russia's position on the current conflict in Israel is likely to be nuanced and a challenge for Moscow to navigate given its conflicting ties in the region, analysts say.

Russia has enjoyed warm and constructive relations with Israel in recent years. But since its invasion of Ukraine last year, Moscow has greatly increased its military ties to Iran, a sworn enemy of Israel and a state known to have provided financial and material support to the Palestinian militant group Hamas, which launched an unprecedented attack on Israel last weekend.

Read more here: As Israel goes to war, Russia must now decide where its loyalty lies in the Middle East

Ukraine's Zelenskyy says 'good news' on air defense after talks in Romania

Ukrainian President Volodymyr Zelenskyy said on Tuesday he had "good news" on artillery and air defence supplies after talks with Romanian President Klaus Iohannis in Bucharest, but gave no details.

"My main accent today was air defence. And I'm glad that Ukraine was heard by the Romanian side," Zelenskyy, who has been seeking more arms to defend Ukraine against Russia's invasion, told a joint press conference in the Romanian capital.

Zelenskyy also said everything possible should be done to prevent Russia turning part of the Black Sea or the Danube region into what he described as a maritime "dead zone".

Russia has pulled out of a deal that guaranteed safe shipments of Ukrainian grain via the Black Sea, and has been attacking Ukrainian port infrastructure on the Danube River.

— Reuters

Kremlin rejects Ukraine's claim that Russia wants to inflame tensions in Middle East

The Kremlin rebuffed Ukrainian President Volodymyr Zelenskyy's suggestion that Russia had a vested interest in stirring up tensions in the Middle East, saying it had "absolutely no basis" in fact.

Speaking to reporters Tuesday, Kremlin spokesman Dmitry Peskov said the conflict had been simmering for years and that Russia had ties to both the Israeli and Palestinian territories.

"Many people know the backstory, but it is so deep that not everyone already knows the nuances," the Kremlin spokesman added, news agency Interfax reported.

"In this case, we maintain relations with both sides of this conflict," Peskov told reporters, answering a question on whether the Kremlin shares the position of the head of Chechnya, Ramzan Kadyrov, who expressed support for Palestine.

"Of course, we have long-standing historical ties with the Palestinians, we continue our contacts. Indeed, we are talking about contacts at different levels, including at a high level over time. But at the same time, we also have our relations with the state of Israel, with whom we also have a lot in common, especially the large number of our compatriots who live in this state," he said.

Peskov said Moscow was ready to offer support to both sides but conceded there had been few successful attempts to broker peace between Israelis and Palestinians previously.

"We are ready to continue to make efforts and play our part," he said, without giving further detail.

— Holly Ellyatt

Russia unlikely to introduce further mobilization ahead of 2024 election, UK says

Russia is gearing up for the 2024 presidential election and is unlikely to implement potentially unpopular policy moves ahead of the vote, the U.K. said.

Russia's presidential election will take place on March 17 in 2024, the U.K.'s Ministry of Defence said Tuesday.

Current President Vladimir Putin is almost certainly expected to run for office again again although he has not yet publicly announced his intention to run again. Still, there's speculation that Putin's election campaign will begin informally next month.

"While elections in Russia are subject to interference and control by the Kremlin, they remain a core tool of political legitimisation," the ministry said on X, formerly known as Twitter.

"It is almost certain that Putin's election campaign will focus on the theme of Russia as a separate civilisation in need of defence from external enemies – a narrative frequently used to justify the state's actions and Putin's consolidation of power."

In the build-up to the election, the Kremlin will almost certainly seek to minimise unpopular policy moves, the U.K. said, adding that "it is therefore highly unlikely that any further mobilisation wave will be implemented before the March 2024 presidential election."

— Holly Ellyatt

Ukraine investigates 260 cases of alleged military recruitment abuses

Ukrainian authorities are investigating 260 criminal cases involving alleged "violations" at military recruitment offices, the State Bureau of Investigations (SBI) said on Tuesday.

President Volodymyr Zelenskiy dismissed the heads of regional recruitment centers in August after widespread allegations of criminal abuse and corruption.

The SBI said 21 indictments against 35 individuals had been sent to court, and that another 58 people had been identified as suspects.

It also said it had documented around $110,000 worth of alleged bribes and that courts had seized around $88,000 worth of property.

"Although the vast majority of...employees conscientiously perform their duties, in many regions there are cases of abusing official positions or exceeding authority," it said in a statement.

Kyiv is aiming to improve military recruitment as it presses on with a more than four-month-old counteroffensive to drive Russian forces out of territory in the east and south of Ukraine following Moscow's full-scale invasion last year.

Zelenskiyy and his government are also keen to show that Ukraine is fighting corruption after setting their sights on membership of the European Union.

"The Bureau warns officials who intend to use their official position for their own profit during wartime: you will definitely be exposed and prosecuted," the SBI said.

— Reuters

Israel-Hamas conflict puts Russia in an awkward position

Russia's stance on the Israeli-Hamas conflict is complicated, analysts say — Moscow has traditionally good relations with Israel and increasingly close ties to Iran, which provides the Hamas militant group with financial and material support.

"Russia's stance on the conflict is complex," Tatiana Stanovaya, senior fellow at the Carnegie Russia Eurasia Center and the founder of analysis firm R.Politik, said in analysis Monday.

"On the one hand, Moscow might draw on its history of intra-Palestinian mediation and its ties with Hamas to gain a foothold in any peace process. It also sees the importance of its growing relationships with Iran and Arab states," she noted.

Iran congratulated Hamas on its surprise Saturday offensive against Israel but denied any involvement in the initiative, while U.S. Secretary of State Antony Blinken said Sunday on CNN's "State of the Union" that "we have not yet seen evidence that Iran directed or was behind this particular attack, but there is certainly a long relationship."

"On the other hand, despite recent tensions, Russia's relationship with Israel remains strong and pragmatic, hallmarked by open lines of communication, a degree of practical coordination in Syria and shared views on the historical significance of the Second World War. The fact that Israel has not imposed Western anti-Russian sanctions is also notable."

In light of that, Moscow is likely to stay neutral, she said.

"A severe escalation, potentially even leading to open conflict between Iran and Israel, could jeopardise Russia's established presence in the Middle East and its long, ongoing campaign in Syria," she noted.

Russia's military bases in Syria are an important hub, Stanovaya added, projecting Moscow's influence in Africa as well as the Middle East.

"While some believe this war might push Russia closer to Iran, Moscow is more likely to keep its position as a mediator, aiming to counter Western influence and interact as a constructive peace broker," she said.

— Holly Ellyatt

Ukraine's deputy central bank governor says the West needs to band together

Ukraine's deputy central bank governor said the West needs to remain united when it comes to aid for Ukraine as war fatigue and public and political discontent with continued financial assistance appear to be increasing.

Deputy Governor Sergiy Nikolaychuk told CNBC that international aid is a very important factor in Ukraine's economic resistance as the war continues and that Kyiv was concerned about future aid.

"We have a lot of concerns regarding the future outlook, the future international national support," he told CNBC's Joumanna Bercetche at International Monetary Fund meetings in Morocco.

"We think that for the Western world, and for Ukraine ... should be the joint goal [of] the victory of Ukraine in this war, making Ukrainian economy resistant to future shocks."

"That is important, both in order to maintain the global geopolitical order and also global security order. And of course, in order to avoid any potential threats for the Europe, especially for the Eastern Europe countries," he added.

When asked to comment on the U.S.' pause on additional funding for Ukraine, a condition in a stopgap deal approved by Congress last month to maintain government funding for 45 days, Nikolaychuk said "we still suppose that is a short term delay in the financing for Ukraine, we still rely on the support of the American state."

"So we are very glad to hear this assurances that the U.S. is ready to support Ukraine as long as as needed. And definitely that is an important an important factor for both for financial stability in Ukraine, and also the its resilience. Its ability to withstand the challenges caused by the war," he noted.

— Holly Ellyatt

Kremlin: Western taxpayers are asking how their money is being spent on Ukraine

Western taxpayers are starting to ask questions about how their money is being spent in helping Ukraine's armed forces, Kremlin spokesman Dmitry Peskov said on Monday.

Asked at a regular news briefing about Western fatigue over the Ukraine conflict, Peskov said that sooner or later Western support for Kyiv would start to decline.

— Reuters

Kyiv says Russia is planning disinformation campaign to discredit it in the Middle East

Kyiv said Russia is planning to launch a disinformation campaign to discredit Ukraine in the Middle East, claiming Moscow was planning to allege that Ukraine had supplied Western-supplied weapons to Hamas militants.

"The special operations units of Russia are conducting a campaign to discredit Ukraine in the Middle East," Ukraine's main intelligence department said on Telegram Monday. It said Russia was looking to exploit the Palestinian militant group Hamas' attack against Israel in order to undermine Ukraine.

The intelligence department claimed that the Russian army had given Hamas "trophy weapons manufactured in the USA and EU states, that were captured during the hostilities in Ukraine."

"The next step, according to the plan of the Russians, should be fake accusations [involving] the Ukrainian military in the alleged sale of Western weapons to terrorists on a regular basis."

"As part of the Kremlin's disinformation campaign, these fakes should form the basis of a number of 'revealing publications' and 'investigations' in the Western media," the intelligence department added.

It did not provide evidence for its claims and CNBC was unable to verify the information.

Ukraine said Russia "aimed at discrediting the Armed Forces of Ukraine and [encouraging] the complete cessation of military aid to our country from Western partners."

Ukraine's President Volodymyr Zelenskyy spoke to Israeli Prime Minister Benjamin Netanyahu on Sunday, having offered his support and condolences for those killed in deadly attacks that erupted in the country after Hamas launched an audacious and large-scale attack on Saturday.

— Holly Ellyatt

Ukraine's Zelenskyy criticizes Iran's role in Ukraine and Israel conflicts

Ukraine's President Volodymyr Zelenskyy on Monday linked the assault by Hamas on Israel with Russia's invasion of Ukraine and criticized Iran over both conflicts.

Israel was caught off guard on Saturday when the Palestinian Islamist group Hamas launched a devastating attack.

"The only difference is that there is a terrorist organization that attacked Israel and here is a terrorist state that attacked Ukraine. The intentions declared are different, but the essence is the same," Zelenskyy told NATO's Parliamentary Assembly in Copenhagen via video link.

Iran has denied it has supplied Russia with Shahed kamikaze drones for use in Ukraine and has said it is not involved in the weekend's attacks on Israel. Ukraine said about 1,000 Iranian-designed Shahed drones were used by Russia over the past six months.

"Iran can't say it has nothing to do with what is going on in Ukraine if it sells Shaheds (drones) to Russia. Iran can't say it has nothing to do with what is going on in Israel, if its officials claim the support of what is going on in Israel," Zelenskyy said.

U.S. Secretary of State Antony Blinken said there was no evidence Iran was behind the latest attacks on Israel but he said there are long standing ties between Tehran and Hamas.

Zelenskyy urged Western unity in the face of global events. "This is not the time to withdraw from the international arena into internal disputes. This is not the time to isolate ourselves. This is not the time to remain silent or pretend that the terror on one continent does not affect global affairs," Zelenskyy said.

— Reuters

Kremlin 'extremely concerned' about Israel crisis, but has no plans to call Middle Eastern leaders

The Kremlin said Monday that the conflict between Israel and Palestinian militant group Hamas posed "a very great danger for the region," but said Russian President Vladimir Putin has no calls scheduled with Middle Eastern leadership.

Presidential Press Secretary Dmitry Peskov commented Monday that the Kremlin had little to add to a Russian Foreign Ministry statement made on Saturday, in which Russia called for a cease-fire and blamed the West for failing to tackle long-term tensions between the Israeli and Palestinian authorities.

Nonetheless, Peskov said the Kremlin was "extremely concerned" by the violence.

"We believe that it is necessary to bring this situation into a peaceful direction as soon as possible, because the continuation of such a round of violence, of course, is fraught with further escalation and growth of this conflict. This is a great danger for the region, so we are extremely concerned," Peskov said, according to comments published by Tass news agency.

Peskov said Putin does not yet plan to contact Israeli or Palestinian officials.

— Holly Ellyatt

Kremlin already trying to exploit Hamas-Israeli conflict, analysts say

Russia is likely to try to use the eruption of violence in Israel to distract from its operations in Ukraine, analysts at the Institute for the Study of War noted in analysis on Saturday.

"The Kremlin is already and will likely continue to exploit the Hamas attacks in Israel to advance several information operations intended to reduce U.S. and Western support and attention to Ukraine," the ISW said.

Noting that the Kremlin had already amplified several information operations after Hamas' attacks in Israel on Saturday — primarily blaming the West for neglecting conflicts in the Middle East in favor of supporting Ukraine — the ISW said Russia was claiming the international community will cease to pay attention to Ukraine.

Deputy Chairman of the Russian Security Council Dmitry Medvedev claimed on X, formerly known as Twitter, that the U.S. and its allies should have been "busy with" working on "Palestinian-Israeli settlement" rather than "interfering" with Russia and providing Ukraine with military aid.

Meanwhile, Russia's Foreign Ministry accused the West of creating the basis for the current violence, saying it was a "direct consequence of the chronic failure to comply with the relevant resolutions of the UN and its Security Council and the actual blocking by the West of the work of the Middle East "quartet" of international mediators consisting of Russia, the USA, the EU and the UN."

The ISW also noted that a prominent Russian propagandist Sergei Mardan stated on Telegram that Russia will benefit from the escalation as the world "will take its mind off Ukraine for a while and get busy once again putting out the eternal fire in the Middle East."

Commenting on the emergence of such narratives, the ISW said "these Kremlin narratives target Western audiences to drive a wedge in military support for Ukraine, seek to demoralize Ukrainian society by claiming Ukraine will lose international support, and intend to reassure Russian domestic audiences that the international society will ignore Ukraine's war effort."

— Holly Ellyatt

In pictures: Gravediggers create new graves after missile attack

An aerial picture was taken of gravediggers creating new graves for victims of a Russian missile strike in the village of Hroza.

In the attack on Thursday, a missile crashed into a cafe in Hroza as people had gathered to mourn a fallen Ukrainian soldier, Reuters reported at the time. Hroza was captured by Moscow shortly after the Kremlin launched its full-scale invasion of Ukraine in February last year. Ukrainian forces recaptured it in Sept., 2022.

— Hannah Ward-Glenton

Read CNBC's previous live coverage here:

Russia says it's 'extremely concerned' about Middle East crisis — but has no plans to call Israel