Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. UN Chief Urges Russia, Turkey to Stabilize Syria's Idlib 'Without Delay' Reuters UNITED NATIONS - U.N. chief Antonio Guterres appealed to Russia and Turkey on Tuesday to stabilize northwest Syria as the U.N. aid chief said that some hospitals were not sharing their locations with the warring parties because that "paints a target on their back." Russia, which supports Syrian President Bashar al-Assad in his country's civil war, and Turkey, long a backer of rebels, co-sponsored a de-escalation pact for the area that has been in place since last year. But the deal has faltered in recent months, forcing hundreds of thousands of civilians to flee. Idlib in northwest Syria is the last remaining bastion of anti-government rebels after eight years of civil war. "I am deeply concerned about the escalation of the fighting in Idlib, and the situation is especially dangerous given the involvement of an increased number of actors," Guterres told reporters, appealing to Russia and Turkey "to stabilize the situation without delay." .