Obama briefs Congress leaders on fight with IS


US President Barack Obama has briefed Congressional leaders on his plans for an expanded military campaign against Islamic State militants in Iraq and Syria.

He discussed his strategy with leaders from both parties at the White House.

The talks came ahead of a speech on Wednesday night in which he will make a case directly to the American people.

The White House described the meetings as "productive" and said Obama had the authority to act against IS.

Obama has ruled out the possibility of a US ground operation against IS but has signalled he may expand airstrikes to include Syria.