UN report 'abundantly clear' that Syria carried out gas attack: Britain

British Foreign Secretary William Hague addresses the media in the Foreign and Commonwealth Office on September 16, 2013 in London. (Pool/AFP)

Britain welcomed Monday's UN report into last month's chemical weapons attack in Syria and said it was "abundantly clear" from the findings that Bashar al-Assad's regime was to blame.

"We welcome this objective and unequivocal report which confirms that chemical weapons were used on a large scale," Foreign Secretary William Hague said in a statement.

"From the wealth of technical detail in the report... it is abundantly clear that the Syrian regime is the only party that could have been responsible."