A schoolgirl who was abducted by Nigeria’s militant Islamists in 2014 has escaped from captivity, a presidential aide has told the BBC.
The girl was found by government troops while she was escaping, Femi Adesina said, without giving details.
She was among 276 girls seized by Boko Haram from north-eastern Chibok town in 2014, sparking global outrage.
A total of 103 of the girls have been released so far, including 82 earlier this month in a prisoner swap.
The 82 girls, who met Nigerian President Muhammadu Buhari on 7 May, are expected to be reunited with their families later this week.
The number of Boko Haram suspects released by the authorities in exchange for the girls remains unknown.
Last month, President Buhari said the government remained “in constant touch through negotiations, through local intelligence, to secure the release of the remaining girls and other abducted persons unharmed”.