France's President Francois Hollande warned Saturday that vetoing a French-drafted UN Security Council resolution calling for an end to air raids on Syria's Aleppo "would be discredited in the eye's of the world".

"A country that vetoes this resolution would be discredited in the eyes of the world. It would be responsible for continuing abuses," Hollande said.

Russia is expected to use its veto to block the French-drafted measure that is backed by the United States and Britain that also provides for a halt to all military flights over Aleppo.