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 and other members of the Royal family have been photographed in striking "quadruple" portraits.
A student who contracted a deadly strain of meningitis has urged teenagers to get vaccinated.
The MK912 spitfire was forced to make an emergency landing soon after taking off.