Tokyo - Ex-Nissan chief Carlos Ghosn has been suffering from a high fever and was unable to meet investigators for questioning on Thursday, local media said, citing his lawyers.
The 64-year-old auto tycoon, who emerged in public on Tuesday for the first time since his November arrest, has been ill since Wednesday night and needed some time to rest, according to several local news outlets.
His lawyer was not available for immediate comment.
According to the Nikkei daily, a doctor who examined him said Ghosn "required rest and was unfit for interviews (by prosecutors) and meetings (with his lawyers and consular visitors)".
At a dramatic court appearance on Tuesday, Ghosn appeared to have lost a lot of weight in detention but otherwise seemed in good health, fiercely denying the allegations against him in a strong voice.