There were demonstrations in support of the coup on Thursday
The United Nations says it has suspended its humanitarian operations in Niger, after soldiers announced the overthrow of the country’s elected president.
It says more than four million people in the country are currently in need of humanitarian assistance.
UN Secretary-General Antonio Guterres demanded the immediate and unconditional release of Niger’s President Mohamed Bazoum, who is being held captive by military officers.
The French foreign minister has said President Bazoum spoke to President Emmanuel Macron early on Friday and told him that he was “reachable” and “in good health”.