GENEVA-- A United Nations envoy halted his attempts to conduct Syrian peace talks on Wednesday after the army, backed by Russian air strikes, advanced against rebel forces north of Aleppo, choking opposition supply lines from Turkey to the city.
Staffan de Mistura announced a three-week pause in the Geneva talks, the first attempt to negotiate an end to Syria's war in two years, saying they needed immediate help from the rival sides' international backers, principally the United States and Russia.
UN halts Syria talks as government closes in on Aleppo
