State authorities say they've broken up a major fentanyl and heroin production mill in northern New Jersey that's been linked to dozens of overdoses, including 33 deaths.

Attorney General Gurbir Grewal announced Tuesday that four individuals have been charged in connection with the mill. He also says authorities seized about 70,000 individual doses of drugs along with four kilograms of suspected fentanyl and heroin in their takedown of the mill that was based in an Irvington apartment.

Gurbir said the mill distributed its narcotics in wax folds stamped with the same brand names that have been linked to 93 overdoses and dozens of deaths.

Three of the alleged ring members face charges of maintaining a narcotics production facility and possessing heroin with intent to distribute, along with several other drug and weapons charges.

The fourth defendant is charged with conspiracy to distribute narcotics, receiving stolen property and money laundering.

“This is another victory for our Opioid Enforcement Task Force and another case where we undoubtedly saved lives by stopping countless doses of fentanyl and heroin from reaching drug users, including doses stamped with the same brand names as drugs linked to 33 deaths,” Grewal said in a statement.