Buhari sworn in as Nigeria's president after historic election win
Muhammadu Buhari vows to tackle the country's many problems — including Boko Haram — "head on."
Nigeria's Jonathan starts handover to president-elect Buhari
The outgoing president Goodluck Jonathan took his successor on a tour of the presidential villa.
Boko Haram hostages were held in 'severe and inhuman conditions': military
Nearly 500 women and girls were released this week.
Nigeria has rescued 300 women from Boko Haram. But no one is sure how many are still missing
The Nigeria military claimed to have rescued 300 girls after heavy fighting this week.
Watch: It takes 'boko' to fight Boko Haram
Resisting terror, refugee educators keep teaching wherever they can.
Watch: Food's running out in Nigeria's refugee settlements
With farmland in short supply, Boko Haram survivors now face food shortages.
Just how many girls has Boko Haram kidnapped in Nigeria?
The Nigerian army rescued 200 girls from Boko Haram on Monday. But they weren't the 200 girls that inspired the campaign, #BringBackOurGirls.
Nigeria says it has rescued nearly 300 women and girls from a Boko Haram stronghold
A spokesman said late Tuesday the hostages were not the girls kidnapped from Chibok a year ago.
Here is why Boko Haram exists. And the terrible repercussions
Senior Correspondent Erin Conway-Smith traveled to Nigeria to investigate the roots and impacts of Boko Haram.
Boko Haram 'burned our houses, they burned our food' (VIDEO)
City of hope: Yola has taken in many of the 1.5 million Nigerians chased from their homes by the insurgency.
What Boko Haram terror looks like through the eyes of Nigerian children
Bloody faces, headless bodies, burned houses — these are some of the stark and haunting images drawn by children who have fled deadly Boko Haram violence.
Boko Haram militants disguised as preachers kill at least 24 in Nigeria
The attackers gathered people at a mosque and then opened fire.
Dawn in the Creeks: Former Niger Delta militants move toward a more peaceful future
As Nigeria looks to a new president to lead, meet three young people working to leave violence behind.
Boko Haram uses children as human bombs: UN
Human rights chief says the group also forces women and girls into sex slavery.
Can Nigeria's election inspire a wave of African democracy?
Some experts believe this might be the beginning of an 'African Spring.'
Nigeria's first opposition win since '60 puts an ex-military coup leader back in power
Nigerians weren’t happy with their president, and so they voted him out. It's not as simple as it sounds.
Nigeria says goodbye to Goodluck Jonathan
Jonathan's People's Democratic Party (PDP) has been in charge since the end of army rule in 1999.
Nigeria's Buhari builds unassailable lead in historic vote
This election could mark the first time an incumbent loses at the ballot box in Africa's most populous nation.
Nigeria's election is really important. Here is why
In these apocalyptic days, there is a new reason why this election matters so much: Boko Haram.
Nigeria election results due to start trickling in
Opposition groups are already contesting at least part of the outcome.
Nigerian voters try again after technical glitches
The technical difficulties set the tone for a potential dispute.
Nigerians vote in first genuine contest since end of dictatorship
The tense race pits incumbent President Goodluck Jonathan against former military ruler Muhammadu Buhari with an electorate divided along a complex mix of ethnic, regional and in some cases religious lines.
Nigeria's refugee camp ballots add a new challenge to free elections
1.2 million people have been displaced by Boko Haram in northeast Nigeria. How many of them will get to the polls today?
Integrity of the 2015 Nigerian elections is paramount to the future of Africa
There is hope the Abuja Accord will keep the peace even if the vote tally is close.
Nigerian president warns against bloodshed ahead of Saturday's vote
People are stockpiling food and supplies in anticipation of violence after the closest presidential race since the end of military rule.
Retreating Boko Haram leaves mass of throat-slit corpses near Nigerian town
A trail of blackened blood was visible along the side of the bridge facing the bodies, suggesting they had been thrown off the side after being killed. Among the dead was the imam of the town.
Nigeria's Boko Haram releases beheading video echoing Islamic State
The footage will stoke concerns that Boko Haram is expanding its scope and seeking inspiration from global militant networks including Al Qaeda and Islamic State.
Teenage suicide bomber kills at least 15 at northeast Nigeria bus station
While no group has come forward to claim responsibility for the attack, the main suspect is likely to be Boko Haram.
Nigeria postpones Feb. 14 presidential election to March 28
The postponement could stoke unrest in opposition strongholds.
Boko Haram attacks seen as increasing before elections
Security analysts believe Maiduguri, the birthplace of Boko Haram, will likely be hit again before polling day.
Boko Haram wages new Nigeria attacks as Kerry visits
Kerry is expected to address poll-related violence, which has blighted previous Nigerian elections and which it is feared could erupt again, ahead of polls next month.