4 tortured bodies found hanging from highway overpass in northern Mexico city of Saltillo

Authorities in the northern Mexico state of Coahuila say police found the bodies of four men hanging from a highway overpass in the capital city of Saltillo.

Coahuila state security spokesman Sergio Sisbeles says the victims found Friday had been tortured and had their feet and hands bound with duct tape. Sisbeles says none had been shot and authorities were still trying to determine the cause of death.

On Sunday, police found the mutilated bodies of seven men in Torreon, a city in southern Coahuila.

Coahuila state is across the border from Texas and it has seen a spike in drug-related violence as the Zetas drug gang and the Sinaloa drug cartel fight over territory.