Drug lord Rafael Caro Quintero has long been wanted by the DEA for killing of agent Enrique “Kiki” Camarena in 1985.

Cartel leaders Rafael Caro Quintero and Vicente Carrillo Fuentes are set to be arraigned in a U.S. federal court in New York City on Friday, following their surprise transfer from Mexico. The pair were among 29 Mexican prisoners sent Thursday to eight cities across the U.

Mexico extradited 29 people accused of being involved in drug cartels to the U.S. on Thursday, the Department of Justice announced. The big picture: The move is a part of President Trump's vow to crack down on cartels for what he called in an executive order a "campaign of violence and terror" that saw him designate eight drug cartels as global terrorist organizations last week.

Mexico has sent infamous drug lord Rafael Caro Quintero to the United States along with 28 other prisoners requested by the U.S. government. Caro Quintero was behind the killing of a U.S. DEA agent in 1985.

Mexico has extradited dozens of drug cartel figures to the U.S., including Rafael Caro Quintero -- who was behind the kidnapping and murder of DEA agent Enrique "Kiki" Camarena.

MEXICO CITY — Mexico extradited 29 alleged drug traffickers to the United States on Thursday, including Rafael Caro Quintero, a prized target long sought in the killing of a U.S. narcotics agent, and two leaders of the hyper-violent Zetas cartel,

Mexico” kingpin, has been extradited to the U.S. He's accused of being behind the killing of American DEA agent Enrique "Kiki" Camarena Salazar in 1985.

The extradition comes as top Mexican officials are in Washington trying to head off the Trump administration's threat of imposing 25% tariffs on all Mexican imports starting Tuesday.