Seven persons including two police officers have been killed in what Mexican authorities call an ambush of a convoy in the southwestern state of Michoacan.
The state Public Security Division and Prosecutor’s Office say 3 far more officers were wounded in the clash early Tuesday.
Police have been guarding a truck and a pickup loaded with scrap metal heading to the city of Apatzingan. Officials say there was a sudden hail of bullets and grenades from dozens of attackers about an hour after midnight.
Authorities say the five civilians who died were burned when their automobiles were set on fire by grenades.
There were no immediate arrests.
The location about Apatzingan was a stronghold of the Knights Templar, a drug cartel whose disintegration has left smaller sized factions to war over turf.