Boko Haram conceded the town after holding it for just two days.
US Centers for Disease Control say two of three types of polio appear to have been eradicated globally - but type 1 remains the 'biggest problem'
BREAKING: Islamist militant group captures village where over 200 schoolgirls were taken in April.
Shell to compensate communities after failing to inspect faulty oil pipeline for years
South Africa was knocked off the largest GDP perch by Nigeria in April.
BREAKING: Goodluck Jonathan has been in charge of Nigeria since 2010 and will run again in February election.
Northern governors in Nigeria urge President Goodluck Jonathan to declare all-out war against Islamists.
Explosion at school in Yobe state left at least 48 dead and another 79 wounded.
Boko Haram leader Abubakar Shekau denies deal with Nigerian army to release kidnapped schoolgirls.
Casualties reported at boys' science and technical school in town of Potiskum
Explosion hits First Bank of Nigeria in Azare in suspected attack by Islamist insurgents.
A suicide bomber detonated explosives killing himself and 32 civilians near a religious procession by the Muslim Brotherhood in Nigeria.
The blast occurred in a market in Yobe State.
Dynamite was used to enable 132 inmates to escape prison, according to reports.
Piracy on the rise in Delta region as three policemen killed and nine people abducted in less than a week.
Ceasefire with terror group shows no sign of holding as blast rocks town of Azare in country's north.
Africa's most populous country goes six weeks with no new cases of deadly disease.
Islamists opposed to peace deal with Nigerian military to form separate group under new leader.
Absence of official statement from Islamist leader Abubakar Shekau raises doubts.
Ceasefire with terror group mediated by Chadian government and announced by Nigerian defence chief.
Boko Haram are looking to expand by recruiting female bombers - but it could prove a disastrous tactic.
Cameroon President Paul Biya announces release of hostages on state radio.