The rebel Free Syrian Army said it shot down on Tuesday a helicopter gunship in Damascus, scene of violent battles between army and rebel forces.
"Yes, we have shot down a helicopter over the district of Qaboon," the FSA's Joint Command spokesman told AFP via Skype, without elaborating.
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For its part, the Syrian Observatory for Human Rights said "according to several witnesses, a helicopter fell after being hit by several rebel shots."
"After pounding the districts of Qaboon, Barzeh and Harasta, the helicopter's fuel tank was hit by a rocket," an activist who identified himself as Abu Omar said, adding that "the helicopter then fell near Qaboon."
But another Qaboon-based activist who identified himself as Omar told AFP "the FSA has engaged in fighting against regime troops, but there is no foundation to reports of a helicopter being shot down."