MEXICO CITY, Sept 6 (Reuters) - Suspected gang members shot down a helicopter in a clash with police in the dangerous western Mexico state of Sinaloa on Tuesday, killing four people, the state's governor said. The aircraft was backing an operation to arrest leaders of criminal groups when the "official helicopter was downed" in an area with rough terrain, Governor Silvano Aureoles wrote on Twitter. It was not immediately clear which gang was responsible. "During the operation, an official helicopter which was supporting the patrol in area of difficult access was shot down," he said. "We lament the death of the pilot, three police officers and a police officer who was injured."
A gang shoots down a police helicopter near Apatzingán, Michoacán, killing four people. The police had been conducting an operation against criminal groups and drug cartels.