Description:A Syrian fighter jet plummets through the air, tail ablaze. Amateur video purports to show the imminent crash in Hama, Syria on Thursday. Another clip is said to show a downed jet on the ground in Hama with some parts of it still on fire. President Bashar al-Assad's military has used air strikes, often against urban areas, to try to keep advancing rebels at bay during the 23-month-long civil war. The rebels have limited means to fight back against jet fighters.(1:16)