The International Residual Mechanism for Criminal Tribunals agreed to a pause while his health was assessed. He is alleged to have financed ethnic Hutu militias who slaughtered about 800,000 Tutsis and moderate Hutus.

It is alleged that Kabuga used his large fortune made in the 1970s tea trade to buy machetes used to arm the Hutu death squads. The wealthy businessman is also accused of using his radio station to urge Hutus to kill rival Tutsis, fuelling the genocide by broadcasting inflammatory hate speech.

Mr Kabuga was arrested in 2020 after managing to avoid capture for decades. French investigators tracked him down to an apartment in Paris where he had been living under a false identity.

Survivors of the genocide have previously expressed concerns that justice might not be served if Mr Kabuga dies without facing trial at the ICC, which was already expected to take years.