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 Calls for Cease-fire Before Syria Gets 'Entirely Out of Control' VOA News U.N. Secretary-General Antonio Guterres said the escalation of fighting in Syria is "one of the most alarming moments" of the conflict and called for an immediate cease-fire. "In recent days I have warned repeatedly about the risk of a serious escalation of the hostilities in northwest Syria. I fear that with the events of the past 24 hours, we have reached that point," he told reporters Friday in New York. The U.N. chief was speaking after 33 Turkish troops were killed Thursday in a Syrian government airstrike in Syria's Idlib province, the deadliest day for the Turkish military since it entered the conflict in 2016. Guterres said a cease-fire isneeded "before the situation gets entirely out of control." .