The Council is due to hold a vote on Saturday afternoon on a resolution authorising a UN team to monitor the ceasefire in Syria.
It is not clear if Russia, which has vetoed two previous resolutions, will back the resolution.
Syrian forces shelled two central districts in Homs throughout the night and into Saturday morning, a resident activist and a human rights group said, the first bombings since a ceasefire took hold on Thursday.
“There was shelling last night in the old part of the city, in Jouret al-Shiyah and al-Qaradis. And I have heard eight shells fall in the past hour,” Karm Abu Rabea, a resident activist who lives in an adjacent neighbourhood, said.
The British-based Syrian Observatory for Human Rights said that shelling had wounded several people overnight.
Syrians took to the streets across the country in small demonstrations on Friday.
Activists said security forces came out in strength in many cities to prevent protesters mounting major rallies against Assad, even though the plan of UN-Arab League envoy Annan says the government should have pulled its troops back.
Protesters questioned Assad’s commitment to the peace plan that he has accepted. In the Qadam district of Damascus, they held up a placard saying: “Bashar may be able to laugh at the whole world – except for the Syrian people”.
Source: Channel 4