Founded by the four Beltran Leyva brothers – Arturo, Carlos, Alfredo and Hector – the organization was once aligned with Guzman’s Sinaloa cartel but later switched allegiance to Los Zetas.

In 2008, a federation dominated by the Sinaloa Cartel, which included the Beltran Leyva organization, broke apart, sparking one of the bloodiest episodes of Mexican cartel infighting. Brothers ...

Two hundred Mexican Navy marines stormed an upscale apartment complex and killed a reputed drug cartel chief in a two-hour gunbattle, one of the biggest victories yet in President Felipe Calderon ...

The Beltrán Leyva Cartel, once one of Mexico's biggest and most feared criminal organizations, is likely scrambling after its ...

Héctor Beltrán “El H” Leyva, one of four brothers to helm the Beltran Leyva cartel, died Sunday of an apparent heart attack at a Mexican maximum-security federal prison. Leyva, who had been ...

Beltrán Leyva, 56, was one of four brothers who led the drug cartel of the same name which was known for its deadly rivalry with the Sinaloa cartel led by Joaquín "El Chapo" Guzmán. Héctor ...

The cartel's importance diminished after the arrest of one of the Beltran Leyva brothers and the death of another in a shootout with Mexican marines in 2009.

Beltrán Leyva, 56, was one of four brothers who led the drug cartel of the same name which was known for its deadly rivalry with the Sinaloa cartel led by Joaquín "El Chapo" Guzmán. Héctor ...