United Nations Secretary-General Ban Ki-moon has said he is not "underestimating the gravity of the situation" in Syria, but believes there is an opportunity for progress and recommended the Security Council approve a 300-strong UN observer mission.
Mr Moon said in a letter to the council that he will consider developments on the ground, including the consolidation of the ceasefire, before deciding when to deploy the expanded mission, which is larger than the 250 observers initially envisaged.
Syrian troops have shelled the central city of Homs in an apparent violation of an internationally brokered ceasefire, activists said.
Five protesters killed in Syria and UN envoys meet to vote on a resolution authorising the deployment of 30 UN observers to the country.
The UN is drafting a resolution to enable 30 unarmed observers to monitor the fragile ceasefire in Syria.