Syrian rebel fighters have alleged that the Assad regime launched "a series of chemical attacks" on the Damascus suburbs of Adra and Douma yesterday morning.
Video posted on YouTube purports to show victims suffering from a range of symptoms associated with chemical weapon use.
ITV News cannot independently verify the social media content.
The use of chemical weapons is banned under the Geneva protocol.
More top news
Sunny skies towards the east, with more cloud and showers towards the west.
Two Irish men have been killed while working on a building site in Australia where an apartment complex was being built.
A summary of the key announcements from Chancellor George Osborne's Autumn Statement and Spending Review.