Syrian Opposition: 200 Civilians Trapped in Damascus Mosque

It is not immediately clear if the 200 sought refuge in mosque or were already praying there when fighting began.

Syria's main Western-backed opposition, the Syrian Coalition, says 200 civilians are trapped in a mosque in a suburb of the Syrian capital as fighting rages outside between rebels and forces loyal to Syrian President Bashar Assad.

Meanwhile, Syrian activists said mortar shells landed in three separate Damascus districts, killing one person and wounding several others. The attacks coincided with Syrian army strikes on the Yarmouk camp for Palestinian refugees on the edge of the city, according to the Britain-based Syrian Observatory for Human Rights.

The Syrian Coalition called on the United Nations in a statement Sunday to send "a strong warning" to Assad that he "must immediately release" the civilians in the Damascus suburb of Qaboun.

It did not say if the 200 had sought refuge in the mosque or were already there praying when fighting began.

It warned that thousands of civilians in Qaboun could be "massacred" by Assad's army, as armored vehicles and elite forces move into the neighborhood.

The Syrian Observatory for Human Rights said clashes in Qaboun that began after midnight had caused casualties.