We chronicle how an internal war split the Sinaloa Cartel between two rival factions, and how it has affected Mexico's crime ...

An eight-month conflict between Sinaloa Cartel factions erupted into blockades and shootouts, raising security concerns ...

Sixteen people have been arrested and three million pills laced with fentanyl were seized in what federal prosecutors said ...

The U.S. ays it just made what it says is the largest fentanyl drug bust in the nation's history, arresting 16 people, ...

Federal prosecutors say 16 people were arrested and over 800 lbs. of fentanyl was seized in an operation against a Sinaloa ...