Jihadists and forces backed by Turkey have jointly taken control of half of Aleppo, Syria's second-largest city, in the north.
This is reported by the UK-based conflict monitor Syrian Human Rights Observatory (SOHR). The advance against the Syrian government forces, which are supported by Iran and Russia, has been rapid.
The offensive began on Wednesday, at the same time as the ceasefire in neighboring Lebanon began, between Israel and Iran-backed Hezbollah.
