The latest images from Syria

This citizen journalism image provided by ENN shows black smoke rising from what rebels say is a helicopter that was shot down at Abu Dhour military airbase, Idlib, Syria, May 17, 2013.

A Free Syrian Army member prays next to the grave of a fellow fighter in a cemetery in Deir el-Zor, May 16, 2013.

Free Syrian Army members sit in a room inside a house in Deir el-Zor, May 16, 2013.

Crews demolish one of the damaged buildings at the site of the May 11 blast, in Reyhanli, Hatay province, May 15, 2013.

Members of the Free Syrian Army help a wounded fellow fighter in Deir al-Zor, May 14, 2013.

This image provided by Aleppo Media Center AMC shows the mother of a Syrian rebel cleaning a rifle, in Aleppo, May 14, 2013.

Syrians wait to cross back into Syria at the Turkish Cilvegozu border crossing in Reyhanli, Hatay province, May 14, 2013.

A view of the damaged Khalid ibn al Walid Mosque in Homs, Syria, May 14, 2013.

Syrian army soldiers inspect a house as they advance in on the village of Western Dumayna, near the rebel held city of Qusayr, May 13, 2013.

This citizen journalism image provided by Aleppo Media Center shows the famed 12th century Umayyad mosque in Aleppo, which was damaged by shelling, May 13, 2013.