Niger's President Mohamed Bazoum is in good health after being taken captive by his own presidential guard, the French foreign minister has said.
When President Vladimir Putin opens the Russia-Africa summit in St Petersburg on Thursday, the attendance cast list will be closely scrutinised - in Paris, Washington, London, and at the United Nations headquarters in New York.
The US military has evacuated American diplomats and their families from Khartoum, President Joe Biden has said.
A US diplomatic convoy came under fire in Sudan on Monday but nobody was hurt, US Secretary of State Antony Blinken has said.
A power struggle between Sudan's army and a notorious paramilitary force has rocked the country, with more than 50 civilians reported dead.
A South African accountant who was investigating high-level corruption cases has been shot dead along with his son.
Young children are dying in growing numbers in Somalia amid the worst drought to hit the country in 40 years. Government officials say that an even greater catastrophe could sweep the country within days or weeks unless more help arrives.
Ghana has confirmed its first two cases of the deadly Marburg virus, a highly infectious disease in the same family as the virus that causes Ebola.
At least 26 people have died after they were electrocuted by a falling power cable at a market in the Democratic Republic of Congo, police say.
Russia's unmanned Luna-25 spacecraft has crashed into the Moon after spinning out of control, officials say.
Donald Trump has confirmed that he will not take part in Republican presidential debates with his rivals in the race for the White House.