Six more humanitarian corridors will be opened for the evacuation of civilians from Aleppo, he added.
Six more humanitarian corridors will be opened for the evacuation of civilians from Aleppo, he added.
The US is trying to spare a jihadist group in its attempts to unseat Syria's President Bashar al-Assad, Russia's foreign minister has told the BBC.
If successful it could cut the militants' main access route to the outside world, paving the way for an assault on their Syrian capital Raqqa.