A street gang in El Salvador put a fake body in an abandoned car to lure police into a car-bomb attack, wounding two officers Monday, in the latest in a round of killings of police and soldiers in the country.

The authorities told the New York Times that suspected gang members wrapped a mannequin in blankets inside a car and then detonated explosives in the vehicle when police arrived to investigate what they thought was a body at a soccer field on the outskirts of San Salvador, the capital.

The attack came after suspected gang members killed two police officers and three soldiers over the weekend. All were off-duty when they were attacked. Some were playing sports.