The CIA has been flying MQ9 Reaper drones over Mexico to help sniff out dangerous cartels and fentanyl laboratories, in partnership with the country's government.

The Trump administration is seeking Mexico’s assistance in stemming the flow of fentanyl across the border into the U.S. Last year, high-tech scanners were installed at a port of entry in Arizona to detect the illegal drug.

A Houston woman was sentenced to 36 months in prison for trafficking fentanyl into the United States from Mexico.

President Donald Trumps freeze on U.S. foreign aid has temporarily suspended key anti-narcotics programs in Mexico, impacting efforts to curb the flow of fentanyl into the U.S. The freeze affects all programs under

A Mexico, Mo., man faces several charges after sheriff’s deputies said they found half a pound of fentanyl during a traffic stop.On Wednesday, an Audrain County

Mexico boosted troop levels at the border after President Trump threatened a tariff on all Mexican goods coming into the U.S. NBC News' Gabe Gutierrez got exclusive access, and takes a look at whether or not the uptick in troops will impact the flow of illegal immigration and fentanyl into the U.

Canada and Mexico are expected to intensify efforts this week to avoid punishing 25% tariffs on their exports to the U.S. in talks to persuade President Donald Trump's administration that their steps to

Mexico President Claudia Sheinbaum said Wednesday that surveillance drone flights by the U.S. government over Mexico are occurring in collaboration with and at the request of her government. They come as U.

Trump's tariffs on Mexico and Canada, aimed at curbing fentanyl flow, may worsen the crisis by spiking overdoses, a harm reduction advocate warns.

The Trump administration is reportedly using a covert drone program to hunt down fentanyl laboratories in Mexico, the latest in

Trump has cited illegal flows of the deadly opioid fentanyl as one of the reasons for a threatened 25% tariff on Mexican goods. He put the trade levies on hold for a month, until early March, after Mexican President Claudia Sheinbaum agreed to deploy 10,