Stay-at-home order in bid to contain virus to be lifted gradually over a six-week period

Nigerian prosecutors say they will seek extradition of two men

Backed by hedge funds and armed with lawyers, Irish-backed firm P&ID is running an insurgent campaign for payment

Collapsed deal has left the African nation with a $9bn legal judgment

Nigeria expected to appeal London court’s decision relating to P&ID

President condemns attack on funeral in northeastern Borno region

Member countries had adopted a flexible exchange rate regime

Muhammadu Buhari faces an array of challenges, including Boko Haram unrest

Atiku Abubakar denounces Saturday’s election as ‘sham’ and vows to challenge result

Initial results give incumbent Muhammadu Buhari a lead over his main challenger

Delayed presidential election marred by violence projected to be tight

Unspecified ‘challenges’ led to postponement of vote last week five hours before polling time

Petrol price cut to encourage voters to travel after last-minute postponement a week ago

Past votes in Africa’s largest democracy marred by violence, intimidation and rigging

Buhari is in last throes of bruising re-election campaign

Rumours over Muhammadu Buhari’s health had circulated since long illness last year

US president’s interventions could jeopardise joint bid by US, Mexico and Canada

Nigerian military intervenes after Islamist group attack in northeastern village of Dapchi

Conflict sponsored by Islamist group changes from military assaults to guerrilla tactics

Schoolgirls kidnapped in 2014 freed in exchange for several militant commanders

Security forces block access to electoral commission following presidential poll

Emotional scenes after 21 girls freed in what Islamist group says is act of ‘good faith’

Muhammadu Buhari, meeting Merkel, vows to keep battling corruption and jihadists

Aisha Buhari says her husband does not know most of the officials he has appointed

More than 200 girls were seized by Islamists in northern town of Chibok in 2014

Islamist group’s leader Abubakar Shekau reported wounded as John Kerry arrives

Girl recovered almost two years after 300 schoolgirls kidnapped from village of Chibok

Schoolgirl who escaped from jihadists after two years meets Nigerian president

Video provided by Boko Haram to negotiators seeking release of Nigerian girls

Attacks at camp for displaced people underscore strategy adopted by jihadi group

Nigeria suicide bombs continue apace despite president’s claims of victories over jihadists

Thirty Islamists killed in raids by Nigerian troops on camps in forest, officials say

New leader has made defeating Islamist militant group Boko Haram his top priority

François Hollande says he is ready to hold summit with regional leaders to co-ordinate fight against Boko Haram

Boko Haram church attack kills more than 200

Call by Amnesty International follows ‘sickening’ report alleging human rights abuses

Anniversary of the abduction of 200 schoolgirls by Boko Haram militants from a secondary school in Chibok

Amnesty International say those kidnapped are turned into cooks, sex slaves and fighters

Incoming president urges Nigerians to be respectful and peaceful after election victory

Confusion and violence blights tense first ballot since end of military rule in 1999