Police in Turkey arrested 13 for a possible connection to the attack on Istanbul's airport as the death toll as the death toll climbed to 44 on Thursday and funerals continued for the victims, NBC News reported.
Along with the dead, more than 200 were injured when assailants with guns and explosives hit the airport on Tuesday.
Officials have said the coordinated assault on Ataturk airport bore the hallmarks of ISIS, but there has been no official claim of responsibility. Turkish officials have not publicly identified the attackers. Police sources told NBC News that assailants were Russian, Uzbek and Kyrgyz.
Police carried out 16 raids targeting ISIS suspects in Istanbul overnight. The state-run Anadolu Agency said 13 people were taken into custody — including three foreign nationals.