Nigeria

Video of kidnapped girls emerges after Shekau replaces an IS-appointed leader.

More than 275 girls were kidnapped from an evening school in Chibok in April 2014.

Ansaru, a Boko Haram breakaway group is known for kidnapping and killing Westerners.

Eight teams will fight against each other for gold in the men's football event.

Nigeria loses 'largest economy' in Africa title to South Africa as naira weakens and oil prices fall.

Nur defected from Boko Haram in 2012 to form the Ansaru splinter group.

Usman arrested as Economic and Financial Crimes Commission accuse him of cyber crimes.

Tensions increase as disputed leader Shekau refuses to acknowledge Barnawi's appointment.

Attack occurred in Niger Delta where attacks blamed on Avengers have brought oil production to 30-year low.

Nigeria lead Group B after beating Japan 5-4 in their opening encounter.

IBTimes UK's Bisi Alimi became the first gay Nigerian to disclose his homosexuality on national TV in 2004.

Isis names al-Barnawi as new leader for its ally in West Africa but Shekau claims it is a coup.

Shekau releases audio message after Isis names Abu Musab al-Barnawi new leader of Nigeria-based group.

Isis appoints al-Barnawi as new Boko Haram leader as Abubakar Shekau's whereabouts still unknown.

IS has appointed a new leader for its West African province, Nigeria-based Boko Haram group.

Chief Ibrahim was forced to uproot 3,000 villagers and flee Boko Haram rebels.

Halima is one of hundreds of refugees stranded on Niger's border after fleeing Boko Haram.

Shekau rumoured to have been killed or replaced after failing to appear in group's videos.

Payments part of amnesty granted to militants in 2009 on condition they stop carrying out attacks.

Hundreds of global remittance companies forced to cease transfers while Western Union, MoneyGram and Ria continue.

EXCLUSIVE IBTimes UK interviews Uchechi Okwu-Kanu whose Biafran leader spouse is on trial.

Suspect is accused of running a 40-strong network of cybercriminals.

IBTimes UK interviews a security analyst and military spokesperson about action in Lagos and Ogun.

Offensives started months after oil pipeline attacks severely affected country's oil production.

Turkey accuses schools linked to US-based cleric Fethullah Gulen of promoting terrorism.

UN said aid deliveries temporarily suspended after UN convoy ambushed by militants

Nigerian army and government often claim victory over Boko Haram.

More than nine million people across the Lake Chad Basin are in dire need of humanitarian assistance.

Attacks blamed on new militants in Niger Delta have brought oil production to 30-year low.

Avengers deny claims by the Buhari government that peace talks are ongoing - IBTimes UK investigates.