A Mexican National Guardsmen shot and killed three fellow service members at a barracks over the weekend in the western Mexican state of Michoacan, where the government has surged security forces in the wake of recent high-profile killings.

A federal official confirmed the shooting Monday to The Associated Press, requesting anonymity because they were not authorized to discuss it publicly. The shooting, which wounded a fourth service member, was under investigation, the official said.

The suspect was in custody in Michoacan.

The shooting occurred Saturday hours after a car bomb exploded in Coahuayana, Michoacan, killing five people outside a local police station. According to Héctor Zepeda, commander of the community police, the explosion was so powerful that human remains were scat

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