Five people have been murdered this weekend in Sinaloa, a state in northwestern Mexico, officials said.

The partially buried bodies of two men were found in the city of Ahome, Sinaloa Attorney General's Office spokesmen told Efe.

The bodies of the victims, who had been stripped of their clothing, were in an advanced state of decomposition, the AG's office said.

A 35-year-old former municipal police officer was murdered in Culiacan, the capital of Sinaloa, on Friday, the AG's office said.

The body of the victim, identified as Marino Flores Martinez, wasw found on Saturday.

Flores Martinez had wounds in the back of the neck and other parts of his body, investigators said, adding that he was apparently killed with a machete.

Two men driving near the penitentiary in the port city of Mazatlan were forced out of their vehicle and gunned down on Saturday.

The victims were identified as Efren Cabrera Rentería, 44, and Francisco Javier Renteria Lopez, 25, officials said.

The killers fled from the scene and have not been identified.

Sinaloa is home to the powerful drug cartel led by Joaquin "El Chapo" (Shorty) Guzman.

The Sinaloa cartel, sometimes referred to by officials as the Pacific cartel, is the oldest drug cartel in Mexico and Guzman, considered extremely violent, is one of the most-wanted criminals in Mexico and the United States, where the Drug Enforcement Administration has offered a reward of $5 million for him.

The Sinaloa cartel, according to intelligence agencies, is a transnational business empire that operates in the United States, Western Europe, Eastern Europe, the Americas and Asia. EFE