The sweeping changes in Cameroon and Rwanda came barely hours after the coup in Gabon, where President Ali Bongo Ondimba was toppled and placed under house arrest.
The world’s oldest political leader is being urged to extend his four decades grip on power in the next election in 2025.
Presidents Muhammadu Buhari and Paul Biya have inaugurated a multimillion-dollar bridge on Thursday in Etung local government area, linking Nigeria to Cameroon.
The 89-year-old Cameronian presidential, who resides in Switzerland, is Africa’s second longest serving leader having come into power in 1982.
Mr Buhari pledge his government’s support for the stability of Cameroon because the Central African country helped Nigeria during the civil war.
“The AU surely can do more than pay lip service while the continent reels under aging and unproductive dictators.”