More than 50 of the girls abducted by Boko Haram militants in Nigeria last year were seen alive three weeks ago, a woman has told the BBC.
She saw the girls in the north-eastern Gwoza town before the militants were driven out of there by regional forces.
Boko Haram sparked global outrage when it seized more than 219 girls from Chibok town a year ago.
The US, China and other foreign powers promised to help find the girls.
However, the girls have never been traced, and little has been heard of them since they were taken from their boarding school.
The whereabouts of the remaining girls is not clear.
Few weeks ago, a 56-year-old woman who was released by Boko Haram said that the Chibok girls abducted in April 2014 are being held in Gwoza town in Borno State.
According to the International Center for Investigative Reporting, icirnigeria.org, Mbutu Papka was kidnapped in July, 2014 and held by the insurgents in the same location as the abducted Chibok girls. Reportedly, the abducted girls are being kept under very tight security in a house in Gwoza.