Nigeria’s president Muhammadu Buhari sacked his army, navy, air force and defence chiefs on Monday, a widely anticipated move as the former general has made defeating Islamist militant group Boko Haram his top priority.  Photograph: Afolabi Sotunde/Reuters.

Nigeria’s president Muhammadu Buhari sacked his army, navy, air force and defence chiefs on Monday, a widely anticipated move as the former general h(...)

Nigeria’s newly-elected president Muhammadu Buhari arrives to attend a working session with outreach guests at the G7 summit in Bavaria, Germany, on Monday. Human rights campaigners hope Mr Buhari might be encouraged to purge the upper echelons of the Nigerian army and security services. Photograph: Carl Court/Getty Images

The International Criminal Court (ICC) has been asked to consider indictments against nine named senior military officers in Nigeria following allegat(...)

New Nigerian president Muhammadu Buhari arrives with his wife Aisha, before taking oath of office at the Eagles Square in Abuja on Friday. Photograph: Pius Utomi Ekpei/AFP/Getty Images.

New Nigerian president Muhammadu Buhari has vowed to eradicate the “mindless, godless” militant group Boko Haram and rescue hundreds of women and chil(...)

Children rescued from Boko Haram in Sambisa forest wash their hands at the Malkohi camp for Internally Displaced People in Yola in Nigeria. Photograph: Afolabi Sotunde/Reuters 1:39

Boko Haram fighters killed older boys and men in front of their families before taking women and children into the forest where many died of hunger(...)

A file screengrab taken on May 12, 2014, from a video of Nigerian Islamist extremist group Boko Haram obtained by AFP shows girls, wearing the full-length hijab and praying in an undisclosed rural location. Photograph: AFP/Getty Images  1:41

Boko Haram Islamic militants have kidnapped at least 2,000 girls and women since the start of last year, turning them into cooks, sex slaves and fight(...)

Nigerians protest on the one   year anniversary of the kidnapping of hundreds of Nigerian school girls in Chibok, Abuja, Nigeria on Tuesday. Photograph: EPA 1:41

Nigeria’s president-elect Muhammadu Buhari vowed on Tuesday to make every effort to free more than 200 schoolgirls abducted by Boko Haram militants a (...)

A vote for change

Nigerians have defied widespread fears that their presidential election would descend into violence by voting out peacefully their incumbent President(...)

Young supporters of Muhammadu Buhari, a former military strongman, celebrate his victory in the Nigerian presidential election in Kano, Nigeria. Photograph: Samuel Aranda/The New York Times

Nigeria’s election winner Muhammadu Buhari congratulated outgoing president Goodluck Jonathan for peacefully relinquishing power on Wednesday, a day a(...)

Supporters of   Muhammadu Buhari and his All Progressive Congress (APC) party celebrate in Kano on March 31st, 2015. Nigeria’s opposition APC declared an election victory on Tuesday for former military ruler Mr Buhari and said Africa’s most populous nation was witnessing history with its first democratic transfer of power. Photograph: Goran Tomasevic/Reuters

With anger swelling over corruption, inequality and the devastating Boko Haram insurgency in the nation’s north, Nigerians have chosen a former gener(...)

All Progressives Congress (APC) party supporters sit on the floor during a march towards the Independent National Electoral Commission Office in Port Harcourt calling for the cancellation of the presidential elections in the Rivers State. Some 2,000 women protesting against the conduct of elections in Nigeria’s Rivers state were teargassed on Monday as they tried to register their complaints with electoral officials. Photograph: AFP/Getty Images.

Nigerian president Goodluck Jonathan and his rival Muhammadu Buhari were running neck and neck on Monday after the first phase of results in an eagerl(...)