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U.N. urges Libyan factions to agree unity government by month-end
Bernardino Leon, who opened two days of talks in Geneva, said that the input of armed groups was important but was lagging behind the political process.
"We will work in coming days on the basis of timetable which necessarily has to be short. Libya is facing huge challenges," Leon told a news briefing.
(Reporting by Stephanie Nebehay; editing by John Stonestreet)