Relatives and friends of a group of the schoolgirls abducted by Boko Haram have identified them from a video released by the Islamist group.
The footage showed about 130 of more than 200 girls who were kidnapped a month ago from their boarding school in Chibok, Borno state.
Meanwhile, the US has revealed it is flying manned surveillance missions over northeastern Nigeria in an effort to find the missing schoolgirls.