Carrillo Fuentes-beltran Leyva Cartels

Seven police officers and four gunmen were killed in a shootout in Mexico's northwestern state of Sinaloa, a stronghold of one of the country's ruthless drug gangs, officials said.

Seven police officers and four gunmen were killed in a shootout in Mexico's northwestern state of Sinaloa, a stronghold of one of the country's ruthless drug gangs, officials said.