U.S. Ambassador Ken Salazar rejected accusations by Mexico’s president that the U.S. shares some responsibility for cartel violence in Sinaloa state.

The most recent deaths come nearly two months after officials arrested Sinaloa Cartel leader Ismael “El Mayo” Zambada in the United States. His arrest reportedly sparked infighting within the Sinaloa Cartel’s two factions: Los Chapitos spearheaded by co-founder Joaquin “El Chapo” Guzman Loera and La Mayiza led by Zambada.

Some 53 people have been killed and 51 others are missing in Mexico's western Sinaloa state since rival factions of the Sinaloa Cartel began clashing on Sept 9, local authorities said on Friday, with gruesome violence showing no signs of abating.

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

The U.S. ambassador to Mexico on Saturday rejected President Andres Manuel Lopez Obrador's claims that the U.S. was "co-responsible" for violence in the western state of Sinaloa, where more than 50 people have died in an intra-cartel war this month.

Mexican President Andrés Manuel López Obrador is asking the warring factions of the Sinaloa cartel terrorizing the capital city of Culiacán to act "responsibly” so no one else gets killed

Shootouts in the western Mexican state of Sinaloa have kindled fears that an intra-cartel war is about to break out in the wake of the arrest of legendary trafficker, Ismael "El Mayo" Zambada, in July.