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.

BROOKLYN (CN) — Drug lord Rafael Caro Quintero, who masterminded the killing of a U.S. Drug Enforcement Administration agent in 1985, pleaded not guilty Friday after Mexico expelled him and 28 other cartel figures to the United States this week.

Gov. Katie Hobbs' order expands border security operations in four border counties, Yuma, Pima, Santa Cruz and Cochise.

Mexico on Thursday sent the United States 29 people accused by American authorities of being drug cartel members, the two governments said.

The Mexican government seized nearly $40 million worth of methamphetamine amid pressure from Donald Trump to take more action to

The largest collaborative police effort to enforce federal immigration laws in Arkansas’s history resulted in the arrest of 219 illegal immigrants over the past three weeks.