UNITED NATIONS, April 9 (Xinhua) -- Staffan de Mistura, the UN special envoy for Syria, on Monday warned of the danger of the current situation in Syria running out of control.

Recent developments in Syria carry more than ever before the danger of such a scenario, de Mistura told the Security Council.

"The council cannot allow a situation of uncontrollable escalation to develop in Syria, on any front," he said.

At a point of his briefing, de Mistura said he had to slow down his speech because he was talking about a matter of major issue of international security, not just regional or Syrian security.

The events in the past days in Syria had come amid increased international tensions, drawing national, regional, international actors into dangerous situations of potential or actual confrontation, he said. "There is an urgent need for this council to find a way to address the situation with unity and purpose."

The Security Council was holding an emergency session on the situation in Syria, particularly after reports of the use of chemical weapons over the weekend in rebel-held Douma near the capital city of Damascus.