Downing Street has announced that David Cameron is returning to Westminster from his holiday. A Number 10 spokesperson said:
'If true, the brutal murder of James Foley is shocking and depraved.
'The Prime Minister is returning to Downing St this morning. He will meet with the Foreign Secretary and senior officials from the Home Office, Foreign Office and the agencies to discuss the situation in Iraq and Syria and the threat posed by ISIL terrorists.'
That the apparent murderer of James Foley spoke with a British accent was not, according to Philip Hammond this morning, a surprise to those tracking radicalised Britons joining the conflict. But this development still has big implications, surprise or not.
More to follow...