 Several days later, on March 4, one abandoned pro-Gadaffi Mi-8MT air ambulance helicopter serial number "2119" was captured by rebel forces at Ra's Lanuf airfield.Also, on 5 March 2011, rebels shot down near Ra's Lanuf a pro-Gadaffi Su-24MK bomber, serial number "38" of the 1124th Libyan air force squadron with a ZU-23-2 anti-aircraft gun (both pilots were killed), and then the next day, rebels also shot down a pro-Gadaffi helicopter (either a Mi-8 or Mi-24) near Ra's Lanuf with a ZPU-4 anti-aircraft gun.Three more pro-Gadaffi fighter jets (two of them Su-22 fighter bombers—their pilots were captured, reportedly being Syrian and Sudanese mercenaries) and two more pro-Gadaffi helicopters (either Mi-8 or Mi-24) were reportedly shot down by rebel forces during the fight for Ra's Lanuf between March 5 and March 7, however these claims remain uncomfirmed.