Mexican President Andrés Manuel López Obrador says the United States is partially responsible for a wave of violence in Sinaloa state that has left dozens dead

Mexican leader says the U.S. bore some responsibility "for having carried out that operation" to arrest Ismael 'El Mayo' Zambada.

Mexican President Andrés Manuel López Obrador has blamed the United States in part for the surge in cartel violence terrorizing the northern state of Sinaloa which has left at least 30 people dead in

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