The US military has announced that it struck IS targets near the Iraqi town of Mosul on Monday.
A statement said the strikes destroyed or damaged 16 IS vehicles near the Mosul Dam, while all aircraft left the area unscathed.
I've been told at the Nato summit that the intelligence services know exactly who 'Jihadi John' is - or at least are 99.9% certain.
The British aid worker being held by Islamic State is David Haines, a 44-year-old father-of-two from Perth, Scotland.
In a video statement which claims to record his final words US hostage and journalist Steven Sotloff blames US foreign policy for his death.