The coup "puts in danger efforts to supervise a transition, undertaken for several months, notably on the part of the ECOWAS" regional grouping, EU foreign policy chief Josep Borrell said in a statement.

The bloc called for authorities to respect agreements undertaken on July 3 "in order to accompany Burkina Faso to a return to constitutional order no later than July 1, 2024".

"The European Union also deplores the degradation of the security and humanitarian situation in the country," he said.

Junior officers toppled a junta leader on Friday, saying he had failed to fight jihadist attacks in the country.