Syrian pro-government forces are seen on September 28, 2016 in the Farafira district, northwest of Aleppo's historic citadel, after Syria's army took control of the rebel-held district after days of heavy air strikes that have killed dozens and sparked al
WASHINGTON: The United States threatened on Wednesday to halt its joint work with Russia on Syria unless Russia moved to end the assault on Aleppo and to restore a defunct ceasefire, the U.S. State Department said on Wednesday.
Secretary of State John Kerry conveyed the message in a call with Russian Foreign Minister Sergei Lavrov in which he voiced "grave concern over the deteriorating situation in Syria" and said Washington holds Moscow responsible for the situation, including the use of incendiary bombs in an urban environment, State Department spokesman John Kirby said in a statement.