Sacks of wheat burn following air strikes by Syrian regime forces in the town of Ras al-Ain near the border with Turkey on November 16, 2012.

A Syrian man salvages belongings from a destroyed house following air strikes by regime forces in the town of Ras al-Ain near the border with Turkey, November 16, 2012.

A cat sits in the damaged old souk of Homs, November 15, 2012.

Syrian rebel fighters keep an eye through a hole in the wall that overlooks a position held by troops loyal to Syrian President Bashar Assad during skirmishes in Aleppo, November 14, 2012.

Syrians dance during a demonstration against the regime in the old city of Aleppo in northern Syria on November 16, 2012.

Tanks positioned at a military base on the Turkish-Syrian border near the town of Suruc, in Sanliurfa province, November 15, 2012.

Smoke rises after a Syrian mortar shell landed in a neighborhood in Aleppo, November 14, 2012.

Residents and Free Syrian Army fighters near buildings damaged after a Syrian Air Force fighter jet fired missiles in Taftanaz, near Idlib, November 15, 2012.

A Syrian family is pictured after they crossed the border fences in the Turkish border town of Ceylanpinar, Sanliurfa province November 12, 2012.

Smoke rises over the Syrian town of Ras al-Ain after an air strike, seen from the Turkish border town of Ceylanpinar, Sanliurfa province November 12, 2012. Syrian warplanes bombed the rebel-held town of Ras al-Ain on Monday.

Free Syrian Army fighters holding machine guns in Ras al-Ain, from the Turkish border town of Ceylanpinar, Sanliurfa province November 12, 2012.

Syrians inspect damage and look for victims moments after an airstrike by Syrian warplanes in Ras al-Ayn, Syria, November 12, 2012, in an image taken from video.

Syrians carry their rubbish to a mountain of garbage in a roundabout in Aleppo, November 10, 2012. Due the heavy fighting and shelling, the garbage collection system collapsed weeks ago.