Israeli defence officials said this week that Syria still has up to three tons of chemical weapons in its possession.

Evidence suggests Assad was behind this week’s chemical weapons attack. Leaders are saying it is a redline issue but Western powers are at a loss to respond, says Peter Apps

Syrian government forces are targeting civilians in barrel bomb attacks in Aleppo that have forced hospitals and schools to move underground, Amnesty International said.

Syrian government troops carried out hundreds of indiscriminate aerial attacks in the past year, most with barrel bombs, in defiance of a United Nations Security Council demand to stop, a US rights group said, calling for a UN arms embargo.