UN weapons teams are inside Eastern Ghouta on the outskirts of Damascus, meeting local people and gathering evidence of a possible chemical weapons attack.
Pictures of the what appears to be the inspection are being streamed live on the internet by a filmmaker called Moahmaih Alsham.
You can watch clips from the visit, as it happens here.
More top news
The Queen was in reflective mood this Christmas, choosing reconciliation as her theme and taking a quite direct personal approach.
Quickly turning cold this evening with a widespread frost developing under clear skies, some fog patches too.
The Queen says she is "deeply touched" by the "selflessness" of medical staff fighting the Ebola outbreak in her annual Christmas speech.