Obama to seek Congressional approval before action

"I will seek authorisation for the use of force from the American people's representatives in Congress," President Obama said.

He said Congressional leaders agreed to "schedule a debate and then a vote as soon as Congress comes back in session."

Advertisement

US faces 'Munich moment' on Syria

US Secretary of State John Kerry has told Democrat congressmen that they face a "Munich moment" as they weigh-up whether to approve strikes on Syria.