Drug deaths are declining but the Trump administration's intelligence team has issued a new report describing street fentanyl as a top threat to the U.S.
The unprecedented show of security cooperation 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.
As the US officially designates six Mexican cartels as terrorist groups, Mexico's president warns the United States against any violation of its territory.
Street fentanyl has long been viewed as unstoppable. Now many experts say the supply of the deadly synthetic opioid is suddenly drying up in many parts of the U.S. and fatal overdoses are dropping.
Ismael Zambada, a historic leader of Mexico’s Sinaloa cartel, and Joaquín Guzmán López, a son of another cartel leader, were arrested by U.S. authorities in Texas, the U.S. Justice Department said.
Members of the Mexican cartel are facing several charges involving fentanyl trafficking, weapons and money laundering in New York, Illinois and Washington, D.C.
The advisory follows the kidnapping of four Americans earlier this month in the city of Matamoros. The state's Department of Public Safety said "cartel activity" made trips to Mexico a "serious risk."
The abduction took place on the streets of Matamoros, Mexico. The FBI is offering a $50,000 reward for the return of the Americans and the arrests of those involved.