Sky News 
August 25, 2013
Syria has warned the US against taking military action against the regime, saying it would “create a ball of fire that will inflame the Middle East”.
The warning came as Prime Minister David Cameron and President Barack Obama said they were “gravely concerned” about signs that an alleged chemical weapons attack took place in Syria.
The two leaders spoke with Canadian Prime Minister Stephen Harper by telephone last night as calls increased for UN investigators – who are already in the country – to be allowed access to the site of the alleged attack.
The US President and his top advisers are continuing to explore options for responding to the reported chemical weapons use.