RIYADH, SAUDI ARABIA — Top diplomats from the Middle East and Europe head for the Saudi capital for talks on Syria as world powers push for stability after the fall of Bashar al-Assad. The talks on Sunday will unfold in two sessions: the first will bring together Arab officials while the second will feature wider participation including from Turkey, France, the European Union, Britain and the United Nations, a Saudi official told AFP on Saturday. The gathering takes place as Syria’s new leader, Ahmed al-Sharaa, whose forces seized Damascus and toppled longtime ruler Assad last month, is pushing for sanctions