The United Nations on Saturday voiced alarm over what it called “a dramatic turn of events” in Libya’s civil war, after a power struggle between leaders of the Tripoli-based government surfaced in the wake of anti-corruption protests. “Libya is witnessing a dramatic turn of events that underlines the urgent need to return to a full and inclusive political process,” the U.N. support mission in Libya said. Protests over deteriorating economic conditions erupted earlier this week in the capital and elsewhere in western Libya, which is controlled by forces loyal to the U.N.-supported government.