French prosecutors investigating a party that former Renault-Nissan boss Carlos Ghosn threw for his wife at the sumptuous Palace of Versailles will, in the next few weeks, ask judges to examine the case, bringing prosecution a step closer.

The prosecutors have been investigating whether Ghosn — now in Lebanon after fleeing last month from prosecution in Japan on financial misconduct charges — knowingly used company resources to throw the party for private purposes.

An official with the prosecutor's office in Nanterre, near Paris, that has been handling the investigation said a judge or judges would be assigned to pursue the case over the Versailles party allegations.