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.
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."