Videos and photographs of what Syrian rebels say was a horrific chemical-gas attack on a Damascus suburb by the forces of Bashar al-Assad are beginning to emerge. Warning: These are very graphic.

One widely shared video of the aftermath of the attack, in which hundreds may have been killed, shows a man wearing a surgical mask yelling angrily at the camera while holding what appears to be a dead child:


Another, filmed at night purports to show the attack itself:


In this video, apparently in the direct aftermath of the attack, Syrians can been seen holding towels and rags to their faces as bodies are being carried away on stretchers

This YouTube playlist has many more videos claiming to show the attack and its aftermath. Many of the worst show rows and rows of bodies—often of young children—lying in makeshift morgues.