A new video released by Islamist militants Boko Haram claims to show around 100 girls kidnapped from a school in Nigeria last month.
The group’s leader, Abubakar Shekau, said they would be held until all imprisoned militants had been freed.
He said the girls had converted to Islam. The video, released on Monday, claims to show them praying.
Boko Haram abducted more than 200 girls from northern Nigeria on 14 April and threatened to sell them.