New York Times reporters witnessed the dangerous fentanyl production process inside a secret lab in Culiacán run by Mexico’s most powerful criminal syndicate.

The Mexican government is working against the clock to strengthen three aspects that the US has historically pointed out as ...

A global crackdown on fentanyl has led cartels to innovate production methods and test their risky formulas on people, as ...

Authorities say the suspects work for "El Perris," the leader of the armed wing loyal to the Chapitos known as "Los Ninis"; ...

The Times reporters visited a fentanyl cooking operation in the capital of the state of Sinaloa and included photographs of ...

Chemical brokers are the supply chiefs of the fentanyl trade, smuggling key ingredients from China to Mexico. Bribes, ...

Mexican cartels, desperate to dominate the fentanyl drug trade amid global crackdowns, are using vulnerable people and ...

Macalla Knott oversaw the transport and sale of millions of dollars of drugs supplied by the notorious Sinaloa Cartel to her ...

The government of Mexico says guns from the U.S. help fuel cartel violence. Now it's suing a major American gun maker and a ...

Using contraband cellphones and women that he called his 'wives,' a California prisoner oversaw a sprawling drug ring that ...