West African army chiefs will meet on Saturday in the Ghanaian capital, Accra, to discuss the military coup in Niger.
Some reports suggest they will prepare plans for a military intervention.
It comes after the regional bloc, Ecowas, ordered the activation of a standby force, during a meeting in Nigeria on Thursday.
The European Union has said Niger’s ousted president is being held in deteriorating conditions under house arrest, and has called for his immediate release.
EU foreign policy chief Josep Borrell said President Mohamed Bazoum and his family had been deprived of food, electricity and medical care for several days.
Source: BBC