The military takeover comes as the West African nation was awaiting the results of Sunday's election.
Nigerian officials dispute reports that some 250 children remain missing after another mass school kidnap.
Efforts to negotiate an end to the war, which has displaced 12 million people, remain unfruitful.
News of his death has shocked many at home in Nigeria, prompting an outpouring of grief.
Refugees have given the BBC a harrowing account of atrocities committed by the Russian paramilitary force.
The police deny little is being done to find the 250 pupils and accuses the school of not co-operating.
South Africa hand India their heaviest defeat by runs to complete a compelling 2-0 series sweep in Guwahati on Wednesday.
The authorities are trying to rescue more than 250 schoolchildren who were abducted by raiders on motorbikes.
BBC Africa Eye uncovers two so-called "juju" practitioners, who offer to obtain body parts for ritual purposes.
The authorities in landlocked Ethiopia have ratcheted up rhetoric over access to an Eritrean port.
Thousands of women have been raped in Ethiopia’s Amhara conflict, BBC Global Women finds.
The UN says hundreds of people were killed in the protests. Verified clips show the violent actions of police as they attempted to crush protests.
Nigeria’s stunning new Museum of West African Art (Mowaa) finds itself in the crosshairs of local power politics.
Mali has been paralysed by a fuel blockade, which has disrupted transport, schools, hospitals and more.
"I have lost the people whose faces I used to see smiling," says Abdu-Rabbu Ahmed after escaping el-Fasher.
South Africa are on the brink of a first Test series win in India for 25 years after reducing the hosts to 27-2 in pursuit of 549 on day four in Guwahati.
Everton's Idrissa Gueye is sent off for striking team-mate Michael Keane during their Premier League victory at Manchester United.
Fixtures, results and scorecards from Sri Lanka's ODI tour of Pakistan, and the Twenty20 tri-series that follows which also involves Zimbabwe.
Malcolm Marx is named men's player of the year at the World Rugby Awards, while Fabian Holland wins the breakthrough player prize.
DR Congo must not be over-confident when the Leopards take part in inter-confederation play-offs for a spot at the 2026 World Cup, says Gabriel Zakuani.
A growing number of women in South Africa are learning to use guns to protect themselves against gender-based violence.
Saving System has developed a device that it says can help firms save electricity.
Speaking before Nigeria face Gabon in African play-offs for the World Cup, Alex Iwobi says Pierre-Emerick Aubameyang was his "big brother" at Arsenal.
From fleets of e-bikes to individual riders, eWaka aims to sell across Africa's delivery market.
Cameroon opposition leader Issa Tchiroma Bakary is adamant that he's the winner of the presidential election.
Three essential stories to round off your working day. Explaining the news from Africa.
After 2021's landslide win, Hakainde Hichilema has nine months to convince voters he deserves a second term.
The opposition has been rallying people to gather on that day to protest against post-poll killings.
The raid on a Catholic school came amid a surge of attacks by armed groups in the West African nation.
The Gambian government says it is hosting Tchiroma Bakary on humanitarian grounds.
