The group said at least 123 people, including 26 children, have been killed by air strikes and shelling since the Syrian army backed by Russian jets began an offensive nearly two weeks ago to take the besieged rebel-held Eastern Ghouta area.
Eastern Ghouta is one of several "de-escalation" zones across western Syria, where Russia has brokered deals to ease the fighting between rebels and
Hereditary President-for-Life Bashir Pencilneckal-Assad
Scourge of Qusayr...
's government.
A Rooters witness said there had been drones in the sky since Sunday morning and warplanes had heavily bombarded the towns of Mesraba and Harasta. Heavy shelling also hit Eastern Ghouta and dozens had been injured.
Assad's forces have besieged Eastern Ghouta since 2012 and the area is suffering a humanitarian crisis.
Ghouta residents are so short of food that they are eating trash, fainting from hunger and forcing their children to eat on alternate days, the U.N. World Food Programme said in a report this week.
The opposition Eastern Ghouta Damascus Countryside local council said this week the escalating bombardment was forcing people to seek shelter in unsuitable and unsanitary places which it feared could lead to disease outbreaks.
A number of shells from the rebel enclave have hit government-held Damascus in the past two weeks.