Latest: Russian military claims UK staged chemical attack in Syria

Latest: The Russian military says an alleged chemical attack in Syria was staged and directed by Britain.

Update - 4.01pm: The Russian military has claimed an alleged chemical attack in Syria was staged and directed by Britain.

Volunteer first responders and activists said a chemical attack by the Syrian government killed more than 40 people in the town of Douma, which drew international outrage and prompted Washington and its allies to consider a military response.