Even after the cease-fire with Iraq, the IRIAF carried out several air raids against Kurdish bases in northern Iraq. The first of such raids was conducted using eight F-4s armed with rockets and cluster bombs on 6 April 1992 against People's Mujahedin of Iran's Camp Ashraf. During this event one F-4 was shot down by either insurgent or Iraqi military AAA and both pilots (Lt. Col Amini and Cpt. Sharifi) were captured and not freed until 1998. Despite threats of response, Iraq was not able to retaliate due to its own fight against Kurdish separatist guerrillas and the Western-imposed no-fly zones that crippled and limited its air force's operations.