Updated

A Mexican police officer has pleaded guilty in a drug smuggling case and admitted he hired a fellow officer to run a hit squad on behalf of a Tijuana-based drug cartel.

Federal prosecutors say Carlos Cosme pleaded guilty in federal court in San Diego on Friday to federal racketeering and narcotics trafficking conspiracy charges.

In his plea, Cosme said he hired a fellow officer to run a hit squad to carry out killings for the drug ring controlled by Fernando Sanchez-Arellano.

Cosme was a former police officer for the Baja California State Attorney General's Office, across the border from San Diego.

Prosecutors say he also admitted to importing and selling several pounds of methamphetamine for the cartel.

He is set to be sentenced Aug. 27.