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Footage purportedly showed rebels at the airbase
Rebel are reported to have taken control of a strategic military airbase in north-western Syria after weeks of fierce fighting with government forces.
Helicopters based there have been used to attack rebel-held areas.
Meanwhile, talks in Geneva between the UN envoy to Syria, Lakhdar Brahimi, and senior US and Russian diplomats ended without a breakthrough.
Mr Brahimi had wanted to discuss with the US Deputy Secretary of State, William Burns, and Russia's Deputy Foreign Minister, Mikhail Bogdanov, how to implement the plan proposed by the Action Group for Syria in June, which called for an immediate cessation of violence and the establishment of a transitional government.
A joint statement read by Mr Brahimi after Friday's meeting stated that all sides had stressed there could be no military solution to the conflict, and underscored the necessity to reach a political solution.
Responding to a question, he said: "If you are
asking whether there is a solution around the corner, I'm not sure that
is the case."
