Nigeria's government has retracted its announcement that the latest girl to escape from Boko Haram captivity was among the 276 Chibok girls whose abduction in 2014 caused global outrage.
The 15-year-old went to the same school as the Chibok girls, but was kidnapped in a separate incident, presidential spokesman Femi Adesina told the BBC.
Yesterday, Mr Adesina said the girl was found by government troops after she escaped, and the news was broken to the cabinet by Acting President Yemi Osinbajo.
The militant Islamists raided a boarding school in the small town of Chibok in north-eastern Nigeria in April 2014, seizing the 276 girls.
A total of 113 of them remain in captivity. The militants released 82 earlier this month in a prisoner swap.
While the Chibok Girls are the most high-profile cases known, aid organisations say that Boko Haram has captured thousands of people in north-eastern Nigeria.