The unprecedented show of security cooperation comes as top Mexican officials are trying to head off the Trump administration’s threat of imposing 25% tariffs on all Mexican imports.

Mexico has sent 29 drug cartel figures, including drug lord Rafael Caro Quintero, who was behind the killing of a U.S. DEA agent in 1985, to the United States as the Trump administration turns up the pressure on drug trafficking organizations.

Mexico has sent drug lord Rafael Caro Quintero, who was behind the killing of a U.S. DEA agent in 1985, to the United States with 28 prisoners requested by the U.S. government, a Mexican government official and other sources confirmed Thursday.

Official says group includes drug lord Rafael Caro Quintero, who was behind the killing of a U.S. DEA agent in 1985

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,