China and Russia have said that they willl veto any UN mandate for military action in Syria.
The two countries - both allies to the Syrian government - said that they are against any move that would bring about regime change.
Their comments come after peace envoy Kofi Annan said it was time to threaten consequences if Bashar Al-Assad's forces do not stop killing civilians.
At least 70 people are reported to have been killed in Hama province last night.