And in Hama province, 50 soldiers were killed when a suicide bomber detonated his explosives-laden car near an army checkpoint on Nov. 5. It was one of the deadliest single attacks targeting pro-Assad troops during the 20 months of conflict.
Jaramana district has been frequently targeted in the past weeks, as the rebels push their way into the capital. Ten people were killed and 41 were injured when a car bomb exploded in the district earlier this month.
Elsewhere on Wednesday, fighting between rebels and government troops raged on. Regime war planes struck rebel-held areas in the northern Idlib province and several Damascus suburbs.
The Britain-based Observatory said fighter jets carried out five air-raids against the strategic town of Maaret al-Numan, which the rebels captured last month. The Observatory also reported heavy fighting on the town's southern edge, along a highway linking Damascus with Aleppo in the north.
The rebels' capture of Maaret al-Numan has cut the government's key supply line to Aleppo, Syria's largest city and a commercial center that has seen clashes between rebels and troops since July.
Since the summer, the Syrian military has significantly increased its use of air power in efforts to roll back the rebels' territorial gains, particularly in the northeast, along the border with Turkey.
Surk reported from Beirut.