A leader of the main Syrian opposition group says it shares the priorities of the new U.S. administration to fight the Islamic State group and contain Iran. U.N. Syria envoy Staffan De Mistura is holding a third day of meetings in Geneva with government and opposition delegations in a bid to find a political solution to Syria's six-year war. Syrian media says multiple explosions have struck a security building in the central city of Homs, inflicting numerous casualties.