Ghana's ambassador to Burkina Faso has also been summoned for a meeting on Friday morning at the foreign affairs ministry, the Burkinabè state information agency said.

President Akufo-Addo made the claim on Tuesday during a meeting with US Secretary of State Antony Blinken on the side-lines of the US-Africa summit in Washington.

He described the development as distressing.

The possibility of Burkina Faso using the Wagner group to fight jihadists in the country has been the subject of debate for several months and prompted warnings from Western powers.

But there has not yet been an official confirmation about an agreement between the group and Burkina Faso, even though Prime Minister Apollinaire Kyelem recently visited Russia.