On 7 May, after weeks of complete inactivity, the Libyan People's Air Force conducted a successful air raid over the rebel-held fuel depots at Misrata, bombing them and setting them on fire. The rebels reported that the raid was conducted with crop dusting aircraft, but probably SF.260 light attack aircraft were used taking off from Misrata airport. NATO failed to intercept the bombing mission. During the entire war and NATO-led intervention in Libya, Libyan rebel forces extensively used their three MiG-21 fighter jets as fighter escort of supply flights to western Libya, guarding transport aircraft that were delivering supplies to besieged rebel garrisons and cities in western Libya, flying despite the NATO-imposed no-fly zone over Libya. These three Free Libya air force jets—two MiG-21bis single-seat and one MiG-21UM two-seat fighter jets—were photographed flying over the Benina air force base south of Benghazi on 27 June 2011.