Rebel groups shot down a Syrian government warplane on Tuesday near a ceasefire zone in the country's south, the factions and a monitoring group said.

"The plane was shot down and crashed in regime-controlled territory. We have no information on the pilot," said Fares al-Munjed, communications head for the Ahmad al-Abdo Forces, a rebel group which operates in Syria's southeast.

The Syrian Observatory for Human Rights monitor confirmed that the plane was downed near a village on the administrative border between the provinces of Rural Damascus and Sweida.