Russian Foreign Minister Sergei Lavrov says it will continue to oppose attempts by the UN Security Council to sanction military intervention in Syria.
Lavrov also repeated calls for an international conference to implement UN envoy Kofi Annan's peace plan.
He said Moscow would support the departure of President Bashar al-Assad, but only if Syrians agreed to it.
Meanwhile, the opposition Syrian National Council has elected a Kurdish activist as its new president.
The exiled SNC, an umbrella group for opposition groups, elected Abdelbasset Sida at a meeting in Istanbul.
Sida, who succeeds Burhan Ghalioun, said he planned to restructure the council and get all opposition groups to agree on a unified vision.
As efforts to find a diplomatic solution to the crisis continued, activists in Syria said more than 80 civilians had been killed by pro-government forces yesterday.