Zimbabwe's President Robert Mugabe must resign or be sent to The Hague for the "gross violations" he has committed, Archbishop Desmond Tutu has said.
The Nobel Prize winner also told Dutch television that Mr Mugabe should be removed by force if he refuses to go.
On Thursday, Kenya's Prime Minister Raila Odinga said African governments should oust Zimbabwe's leader.
Archbishop Tutu said Mr Mugabe had ruined "a wonderful country", turning a "bread-basket" into a "basket case".
US Secretary of State Condoleezza Rice has said it is "well past time" for Mr Mugabe to go, saying a "sham election" has been followed by a "sham process of power-sharing talks".
Zimbabwe has declared a national emergency over the cholera outbreak, which has killed at least 565 people - the most deadly in the country's history.