ISTANBUL — A cease-fire between Syrian government forces and the opposition brokered by Russia and Turkey appeared at risk within hours of being declared as Ankara accused President Bashar al-Assad’s forces of attacking a Turkish military outpost.
The Russian military said late on Wednesday that Moscow and Ankara had struck a deal for a complete cease-fire in the northwestern province of Idlib, the last stronghold of Syria’s rebellion. Home to three million civilians, Idlib has been under Russian and Syrian bombardment since late April in the worst fighting in a year that has seen some 500 people killed.