France's foreign minister says his country is ready to take part in airstrikes against extremist fighters in Iraq if needed.

Laurent Fabius called for international mobilization against "this transnational danger that could reach all the way to our soil."

He spoke Wednesday night in Paris before President Barack Obama is expected to outline Washington's plans for fighting the Islamic State group in Syria and Iraq.

France has said it would join a U.S.-led coalition and is sending arms to Kurdish authorities to fight the militants. The French president and foreign minister are going to Iraq on Friday and hosting an international conference Monday on how to stop the group and help Iraq.

Fabius said in a speech in Paris that "we will participate, if necessary, in military air action."