ROUGH CUT (NO REPORTER NARRATION)<br/> <br />The United States, France and Britain on Monday (September 16) stepped up pressure on President Bashar al-Assad to stick to a deal under which Syria must give up its chemical weapons, and warned he would suffer consequences if Damascus did not comply.<br/> <br />Russia immediately cautioned against imposing tough penalties on the Syrian leader, while in Syria itself fighting was reported on several fronts, with a monitoring group saying a government helicopter had been brought down.<br/> <br />The three Western permanent members of the United Nations Security Council said they would seek a strong resolution in the forum setting binding deadlines for the removal of Syria's chemical weapons, French President Francois Hollande's office said.<br/> <br />The statement followed talks in Paris, two days after the United States reached a deal with Assad's ally Russia on chemical weapons that could avert U.S. strikes on Syria as punishment for a chemical attack in Damas
