Faf du Plessis has stepped down as the Test and Twenty20 captain of South Africa.

The 35-year-old was replaced by Quinton de Kock as ODI captain in January and, with immediate effect, no longer leads the Proteas in any form of the game.

Du Plessis wants to continue contributing as a batsman and senior player and will advise the new leadership group as of the team's succession planning, Cricket South Africa said in a statement on Monday.