At least 15 people were killed and dozens wounded on Monday in government airstrikes on an area outside Syrian capital Damascus, the Syrian Observatory for Human Rights monitor said.
There were no immediate details on the breakdown of those killed in the strikes, which are the latest to hit the town of Douma in the rebel stronghold of Eastern Ghouta.
At a field clinic in the area, an AFP photographer saw a girl in a purple headscarf and another child in a woolly hat crying as doctors treated the wounded, among them a young boy.
His eyes stared wide in apparent shock from a face streaked with blood and white dust. His arm was bandaged and attached to a rudimentary drip.
In the streets outside, locals picked through rubble, carrying the wounded to the clinic, while a civil defense worker trained a hose on a fire set by the strikes.
The opposition bastion, east of Damascus, was still reeling from a massive government aerial assault on Thursday that came after rebels fired more than 120 rockets and mortar rounds into the capital.
The rebel barrage killed ten people in Damascus, including a child, while the government airstrikes and surface-to-surface missiles fired at Eastern Ghouta killed at least 82 people, among them 18 children.
Eastern Ghouta has been under government siege for nearly two years as the army tries to break the rebel hold over the area.
The siege has created medical and food shortages, exacerbating dire humanitarian needs created by regular government bombardment of the area.
More than 210,000 people have been killed in Syria since the beginning of the country's bloody conflict in March 2011.
AFP contributed to this report.