The Britain-based war monitor said more than 700 people have been killed in eastern Ghouta in the past two weeks, since the government and its allies began a massive bombardment of the area on Feb. 18 in preparation for the attack.
Fresh air raids by the Syrian regime on the besieged rebel-held enclave of Eastern Ghouta killed at least 14 civilians overnight, a monitor said Monday.
The Syrian Observatory for Human Rights said barrel bombs -- crude, improvised munitions that cause indiscriminate damage -- were used, including on the town of Hammuriyeh, where 10 people were killed.
The latest deaths brought to 709 the number of civilians killed since regime and allied Russian forces intensified their campaign against Eastern Ghouta in February.
According to Rami Abdel Rahman, the head of the Britain-based Observatory, at least 166 of them were children.
The deadly raids, as well as other strikes and rocket fire elsewhere in Eastern Ghouta Monday, came as the battered enclave awaited a convoy of humanitarian aid from the United Nations.