At least 40 people have been killed and several others have been injured in a car bomb explosion at a mosque near the Syrian capital, Damascus.

The blast came just before the end of Friday prayers.

Both the government and rebels have blamed each other for the attack.

Several children are among the dead. 

Meanwhile, medical charity Médecins Sans Frontières says more than 130,000 Syrians have fled heavy bombing in Aleppo province, in the past two weeks.

They have been forced to flee to areas already struggling with a huge influx of displaced people.

MSF says humanitarian aid is insufficient and medical establishments are often targeted.