On 1 May 2015, the Jalisco New Generation Cartel (CJNG) carried out a series of attacks in Jalisco, Mexico, and four adjacent states to prevent the capture of Nemesio Oseguera Cervantes (alias "El Mencho"), their suspected leader. The operation began early that morning in Villa Purificación, where four Mexican Air Force and Federal Police (PF) helicopters spotted a CJNG convoy protecting El Mencho. As one of the helicopters flew over the convoy, the CJNG members shot it down using rocket-propelled grenade (RPG) launchers. Nine law enforcement officers died as a result of the attack, and multiple others were wounded. This was the first incident in the Mexican Drug War in which organized crime groups shot down an aircraft.