Renault is moving to replace its boss, Carlos Ghosn, who is in detention on charges of financial misconduct, according to media reports.
The French carmaker has kept Mr Ghosn on as chief executive and chairman since he was first arrested in November.
The reports come after a Tokyo court rejected a request for bail on Tuesday.
Lawyers for Mr Ghosn, who denies any wrongdoing, have said he could remain in custody for months.
The 64-year-old was the