The Syrian government and the rebels are receiving more and more weapons, which is fueling violence in a 16-month conflict that the United Nations says has killed more than 10,000 people, UN human rights chief Navi Pillay said.
"The ongoing provision of arms to the Syrian government and to its opponents feeds additional violence," Pillay said in the written text of remarks she made to the UN Security Council, obtained by Reuters. "Any further militarization of the conflict must be avoided at all costs."
She did not say where the weapons were coming from, though Russia and Iran are among the Syrian government's key suppliers. UN diplomats say Qatar and Saudi Arabia have been transferring arms to Syria's increasingly militarized opposition.
There is evidence that the Syrian Army is losing control of more parts of the Syrian capital and the fighting is edging closer to Assad.
Shocking video has emerged of the moment a funeral procession was hit by an explosion in Damascus, killing dozens of people.
UN special envoy Kofi Annan said talks in Geneva today had reached an agreement on a Syrian-led transition, but issued no firm guidance.