UN-SECURITY COUNCIL-MEETING-SYRIA

UNITED NATIONS, Sept. 18, 2018 - United Nations Special Envoy for Syria Staffan de Mistura (Front) addresses a Security Council meeting on the situation in Syria at the UN headquarters in New York, Sept. 18, 2018. Staffan de Mistura on Tuesday asked for the quick implementation of a Russia-Turkey agreement to set up a demilitarized buffer zone in Syria's Idlib province, which could avert a full-scale attack on the last major rebel stronghold in the country.

United Nations Under-Secretary-General for Humanitarian Affairs Mark Lowcock (L, Front) addresses a Security Council meeting on the situation in Syria at the UN headquarters in New York, Sept. 18, 2018.

UN Special Envoy for Syria Staffan de Mistura on Tuesday asked for the quick implementation of a Russia-Turkey agreement to set up a demilitarized buffer zone in Syria's Idlib province, which could avert a full-scale attack on the last major rebel stronghold in the country.China's Permanent Representative to the United Nations Ma Zhaoxu (L, Front) addresses a Security Council meeting on the situation in Syria at the UN headquarters in New York, Sept. 18, 2018.

Russian Ambassador to the United Nations Vassily Nebenzia (Front) addresses a Security Council meeting on the situation in Syria at the UN headquarters in New York, Sept. 18, 2018.

Syrian Ambassador to the United Nations Bashar Jaafari (Front) addresses a Security Council meeting on the situation in Syria at the UN headquarters in New York, Sept. 18, 2018.

Iran's Ambassador to the United Nations Gholamali Khoshroo (Front) addresses a Security Council meeting on the situation in Syria at the UN headquarters in New York, Sept. 18, 2018.

French Ambassador to the United Nations Francois Delattre (C, front) addresses a Security Council meeting on the situation in Syria at the UN headquarters in New York, Sept. 18, 2018.

British Ambassador to the United Nations Karen Pierce (C, Front) addresses a Security Council meeting on the situation in Syria at the UN headquarters in New York, Sept. 18, 2018.

Photo taken on Sept. 18, 2018 shows a general view of the Security Council meeting on the situation in Syria at the UN headquarters in New York.