IS shoots down warplane over Syria

Jordan says the Islamic State extremist group and those that support it will be responsible for the safety of the pilot of a downed coalition warplane.

A monitoring group says the IS group has shot down a warplane from the US-lead coalition over Syria. (AAP)

Jordan's military says one of its warplanes that was on a mission over Syria has crashed in the northern province of Raqqa and the pilot has been captured by the Islamic State group.

The statement carried by state news agency Petra said that IS and "those who support it" will be responsible for the safety of the pilot.

Activists earlier said IS fighters had shot down a Jordanian warplane in Raqqa on Wednesday and captured the pilot.

It's the first US-led coalition warplane to be shot down.

The US-led coalition has carried out hundreds of airstrikes against IS positions in Syria since September 23.

Saudi Arabia, Jordan, Bahrain and the United Arab Emirates have joined in airstrikes against the extremist group, while Qatar is providing logistical support.