The chief negotiator of Syria's main opposition, Mohammed Alloush, has resigned over what he calls the failure of peace talks.

Alloush, from the Saudi-based High Negotiations Committee, or HNC, said the peace talks were a 'waste of time' , as none of the opposition demands were met. The HNC has for months expressed its frustration about the progress of the UN-backed Geneva talks. The Syrian government does not recognize the HNC's right to speak on behalf of the opposition.