There are fears many civilians may still be trapped in a besieged suburb of the Syrian capital Damascus, despite thousands being allowed to leave.
The BBC's Lyse Doucet, who witnessed the exodus, says the government believes only rebel fighters remain in the suburb of Muadhamiya.
But reports say thousands more civilians are too frightened to leave.
Meanwhile, a source in Muadhamiya told the BBC more than 500 men who fled are being detained by the authorities.