The Economic Community of West African States (Ecowas) has been one of the strongest regional blocs in Africa. That was until Tuesday, when Mali, Burkina Faso and Niger announced they were leaving the 15-member organisation.
Now the local Brexit in West Africa has caught the attention of the African Union (AU). On Wednesday, the AU Commission warned that the "irreplaceable unity" of Ecowas must be preserved and African solidarity enhanced.