Félix Tshisekedi, president of the Democratic Republic of Congo, has replaced his chief of staff who is facing trial for alleged misappropriation of funds.

Vital Kamerhe, a key political figure in the country whose party helped President Tshisekedi win the 2018 election, is accused of embezzling nearly $50m (£40.7m) intended for an infrastructure programme to mark the first 100 days of the president in office.

He has pleaded not guilty.

His position has now be taken by his former deputy Désiré Cashmir Kolongele, according to an announcement by the president's spokesperson on Tuesday on state television.

Mr Kamerhe has been held at a prison in the capital, Kinshasa, since 8 April. All his requests for bail have been rejected.

Supporters of his Union for the Congolese Nation (UNC) have said that the charges are politically motivated.