Russian political scientist Vyacheslav Nikonov has described how he learnt of his invitation to a meeting with US intelligence whistleblower Edward Snowden.
He also told Reuters: "I was not in the position to reject..it's intriguing."
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Police have revealed a pair of sandals they have had made similar to the pair Ben is thought to have been wearing when he disappeared
The hospital was last attacked just three days ago, something that UN Secretary General Ban Ki Moon denounced as a war crime.
Former UKIP leader Nigel Farage has flown to the US to help coach presidential candidate Donald Trump ahead of his next debate.