Congolese President Félix Tshisekedi has arrived in Kenya for a state visit where he is expected to formally sign a treaty to join the East African Community (EAC).
Mr Tshisekedi will sign the treaty before President Uhuru Kenyatta who is the current chair of the bloc.
The Democratic Republic of Congo was admitted as the community’s seventh member on 29 March after approval by EAC heads of state.
Leaders of the member states are also expected at the ceremony where they will unveil a new map of the bloc to include DR Congo.
President Kenyatta and Mr Tshisekedi are also expected to sign co-operation agreements.