Two guards and an assailant were killed in the attack on Mr Kamerhe’s house, his spokesman and the Japanese ambassador said in posts on X.

The men also occupied the Palais de la Nation, the office of the President of the Republic which is located in the city centre, a place highly secured by the Republican Guard.

Japan’s ambassador in the Congolese capital has warned nationals not to go out.

President Tshisekedi has not made any public comment on the situation so far.

Local media reports said the assailants were members of the New Zaire Movement linked to formerly-exiled politician Christian Malanga.