'They finished them off': Mexican town rocked by ambush that killed 13 cops

Police officers work at a crime scene where gunmen killed at least 13 Mexican police officers in an ambush, in Coatepec Harinas, Mexico March 19, 2021. REUTERS/Edgard Garrido

COATEPEC HARINAS, Mexico (Reuters) - Bullet casings still littered the ground on Friday in Coatepec Harinas, a troubled municipality southwest of Mexico City where 13 police officers on patrol were brutally murdered in an ambush by suspected drug gang members.

Forensic teams and dozens of heavily armed police and military officials gathered at the cordoned off crime scene dotted with checkpoints after one of the worst mass slayings of Mexican law enforcement officials in years.