The UN envoy to Syria Kofi Annan has said he is "optimistic" that the meeting of world leaders in Geneva on Saturday will produce an acceptable outcome.
Mr Annan's spokesman Ahmad Fawzi told Reuters TV that "talks are on course" and a preparatory meeting will be held in Geneva on Friday.
There have been claims of another massacre in Syria, with pictures apparently showing women and young children among the victims
A resident of Damascus has spoken to ITV News about what life is like in Syria's capital as the civil war in the country intensifies.
Syria's rebel fighters struck close to the heart of President Assad's regime as they bomb the main court building in Damascus