U.S. intelligence analysts suggest the conflict could last for years. The Drug Enforcement Administration reports the Sinaloa ...

Some 53 people have been killed and 51 others are missing in Mexico's western Sinaloa state since rival factions of the ...

Two warring factions of the Sinaloa cartel have clashed in the state capital of Culiacan in what appears to be a fight for ...

The clashes follow the arrests on U.S. soil of Sinaloa Cartel co-founder Ismael "El Mayo" Zambada, as well as Joaquin Guzman ...

At least 30 people have been killed in the past two weeks in Mexico’s northern state of Sinaloa as two factions of the ...

The violence, linked to the arrest of cartel leaders, has prompted school closures and security alerts in the affected areas.

Two warring factions of the Sinaloa cartel appear to be fighting for power since two of its leaders were arrested in the U.S.

Federal authorities say prosecution of "El Mayo" Zambada is a major step in the battle against fentanyl overdoses in the U.S.

U.S. Ambassador Ken Salazar has rejected accusations by Mexico’s president that the U.S. shares some responsibility for ...

Mexican federal forces have arrested "El Piyi" alleged security chief for the "Los Chapitos" faction of the Sinaloa Cartel.

“El Mayo, the co-founder and leader of the Sinaloa Cartel, has been charged with overseeing a multi-billion-dollar conspiracy to flood American communities with narcotics, including deadly ...