Staffan de Mistura
Media playback is unsupported on your device
Video

UN envoy to Syria on push for localised ceasefire in Aleppo

Four years since the war in Syria in began, efforts even to agree a freeze on hostilities in one area in the conflict are proving difficult.

The UN Envoy to Syria, Staffan de Mistura, has said the plan for a local ceasefire in Aleppo was intended to serve as a foundation to move toward broader political negotiations to end a war that has already claimed more than 220,000 lives.

The BBC's Lyse Doucet asked Staffan de Mistura what President Assad had agreed to.

Go to next video: Boy, 15, on life as an IS hostage