The UK's Parliament will reportedly be recalled on Friday to discuss Britain's role in military action against Islamic State militants.
A formal request is expected from Iraq's Prime Minister for the UK to join in air strikes on IS positions.
Peter Oborne of the Telegraph newspaper says a recall of Parliament has to take place before Britain can take part in military intervention in Iraq or Syria.
IN: "It has...
OUT: ...to it."
DUR: 21 seconds