The US has said it has evidence that the chemical nerve agent sarin was used in a deadly attack in Damascus last month.

When asked if the Syrian government had used chemical weapons, Deputy Foreign Minister Faisal Mekdad told the BBC's Jeremy Bowen that they were used by Western-backed armed groups aka 'al-qaeda'.

He said that if there was an attack by the US, terrorism would flourish everywhere, and that US evidence for a CW attack by the Syrian government was the same as the 'evidence' for Saddam Hussein's WMDs.