Mexico has sent infamous drug lord Rafael Caro Quintero to the United States along with 28 other prisoners requested by the U.S. government.

Extraditions of Rafael Caro Quintero and 28 other drug cartel bosses ends historical reticence to hand over crime bosses to the U.S., which has been increasing pressure on Mexico to act against cartel

Between late January and early February, the U.S. conducted at least surveillance flights along the U.S.-Mexico border

Rafael Caro Quintero was arraigned on multiple drug and weapons offenses in Brooklyn federal court following his extradition Thursday to the U.S. from Mexico.

A drug cartel kingpin, known as the US Drug Enforcement Administration’s top target for his role in the killing of a DEA agent, was moved from Mexico to New York City.

Troops in Nogales, Mexico, have found 150 fentanyl pills, according to official statistics. Meanwhile, U.S. officials across the border have seized more than 400,000.

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.

The government crackdown on organized crime intensified after the Trump administration threatened retribution unless Mexico halted the supply of fentanyl into the United States, vowing high tariffs if the flow of migrants and drugs continued.