Chabi Yayi, the son of former Beninese president and current opposition figure, Thomas Boni Yayi, was arrested early Sunday at his home, according to several of his relatives.
A Kenyan court has suspended the implementation of a "landmark" $2.5bn (£1.9bn) health aid deal signed with the US last week over data privacy concerns.
A daughter of South Africa's former President Jacob Zuma has been sworn into parliament, less than a fortnight after her half-sister was forced to step down.
Eleven Nigerian military personnel are being held in Burkina Faso after a Nigerian plane reportedly entered Burkinabé airspace without authorisation on Monday, the latest twist in a region enmeshed in multiple political and security crises.
Police and soldiers deployed in force in Tanzania's commercial capital, Dar es Salaam, on Tuesday to try to prevent protests called for by activists to denounce the violent suppression of demonstrations around elections in October.
Security forces in Benin are searching for the soldiers who tried to seize power on Sunday morning, with the president saying they have taken an unknown number of hostages.
Nigeria's government has secured the release of 100 schoolchildren who were abducted last month in Niger state in one of the country's worst mass kidnappings to date, local broadcaster Channels Television reported on Sunday.
