Nigerian president Muhammadu Buhari met 82 Chibok schoolgirls newly freed from Boko Haram extremists - then made a shock announcement that he was leaving immediately for medical checks in London as fears for his health continue.

Nigeria's president has vowed to "redouble" efforts to secure the release of nearly 200 schoolgirls who remain missing more than two years after being abducted by Boko Haram extremists.

The first of more than 200 schoolgirls missing for over two years after they were kidnapped by Boko Haram militants in Chibok in northeast Nigeria has been found, a parents group and local officials said.

A video has surfaced which appears to show some of Nigeria's kidnapped Chibok girls who have not been heard from since the mass abduction by the Islamic extremist group Boko Haram two years ago.

Five female suicide bombers targeted the Chibok home town of Nigeria’s kidnapped schoolgirls, killing nine civilians and wounding 32, witnesses said.

A protest was held outside the Nigerian Embassy in Dublin today calling for the safe return of almost 300 schoolgirls kidnapped in the country.