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

MEXICO CITY — Some 53 people have been killed and 51 others are missing in Mexico ’s western Sinaloa state since rival ...

The recent surge in cartel warfare had been expected after Joaquín Guzmán López, a son of former Sinaloa cartel leader ...

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

U.S. Ambassador Ken Salazar rejected accusations by Mexico’s president that the U.S. was partly responsible for a surge in ...

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.

At least 10 more people reported killed as the government deploys 600 soldiers to reinforce security amid gang violence.

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

Responding to the cartel violence in Sinaloa with firepower would trigger a "war," President-elect Claudia Sheinbaum said on ...

By Alan Feuer The decision by the Justice Department will put Ismael Zambada García in the same federal courthouse where his fellow Sinaloa cartel founder, El Chapo, was sentenced to life in prison.

"El Piyi" is the security chief of Archivaldo Iván Guzmán Salazar, son of "El Chapo" and believed to be leading the criminal group at the moment ...