UN wants 300 observers in Syria

"As soon as the Security Council adopts a resolution authorizing up to 300 monitors on the ground, we will be ready to deploy very, very rapidly," Fawzi said.

Annan has proposed a six-point peace plan that Syrian President Bashar al-Assad has agreed to, but repeated reports of violence in Syria threaten to derail the cease-fire that’s a key element of the plan.

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U.N. Secretary General Ban Ki-Moon said Thursday that Assad’s forces were not keeping up the truce.

As the violence continues, calls for military action have increased. Sens. John McCainJohn Sidney McCainFormer astronaut running for Senate in Arizona returns money from paid speech in UAE Fox's Roberts: Trump 'glared at me like I've never seen him glare at me before' Lou Dobbs: Political criticism of McCain 'not an exhumation of his body' MORE (R-Ariz.), Joe Lieberman (I-Conn.) and Lindsey Graham (R-S.C.) said Thursday that the cease-fire had failed and the international community needed to provide arms and airstrike support to the rebels.

The Obama administration has remained opposed to using military action in Syria, while condemning the continued violence and pushing for a diplomatic solution.

Secretary of State Hillary ClintonHillary Diane Rodham ClintonIf Mueller's report lacks indictments, collusion is a delusion Conservatives wage assault on Mueller report The wisdom of Trump's lawyers, and the accountability that must follow Mueller's report MORE, who was in Paris for a “Friends of Syria” group meeting Thursday, called for “tougher actions” against the Syrian regime and sanctions.

“We have to keep Assad off balance by leaving options on the table,” she said.