Footage of jet bursting into flames
A fighter jet has crashed in eastern Syria owing to "technical problems", according to state media.
The rebel Free Syrian Army (FSA) say they shot a military aircraft down in the same area, near the Iraqi border.
Experts who examined footage from the FSA of the downed plane say its camouflage and markings are consistent with those of a Syrian air force plane.
The pilot ejected and a search is now under way to find him, according to state media.