Announcement from Nigeria’s Islamic extremist group comes after four bomb attacks

Unidentified air strike follows reports Nigerian army has killed 300 Boko Haram insurgents

Police say 10 dead and 30 wounded following strike in northeastern city of Damaturu

Nigeria is Africa’s biggest oil producer and has one of its biggest economies. But most of its 175 million people have to live on less than $1 a day, and crime and corruption are rife. Some say that’s why the militant Islamist group will always find new recruits

Message issued as the first edition of satirical magazine sells out across France

Militants believed to be behind abduction that would violate ceasefire

Hopes raised 200 missing schoolgirls could be released

Deal said to include release of more than 200 schoolgirls kidnapped six months ago

More than 5,000 people said to have fled Bama following attack by Islamist group

Islamic militant group is richer than ever, more violent and its abductions grow

Canada sends special forces to help search effort

Government says all options being considered after video released

Israel is the latest country to offer help

Michelle Obama is latest high-profile Twitter user to call for return of abducted Nigerian girls

Boko Haram abduction of schoolgirls overshadow hosting of World Economic Forum

Boko Haram leader claims responsibility for abductions and threatens to sell girls

More than 200 girls were kidnapped in Chibok village by Islamist group Boko Haram

Attack took place near area that has become a haven for Islamist sect Boko Haram