Japanese prosecutors on Tuesday issued an arrest warrant for Carlos Ghosn’s wife for alleged perjury, as officials stepped up efforts to bring the fugitive car industry boss back to face trial on financial misconduct charges.

The former Nissan Motor, and Renault chairman fled to Lebanon last month from Japan, where he has alleged there was a government-backed coup to oust him.

A senior Japanese ministry of justice official said staff were poring over Leb anese laws to find a way to bring back Ghosn.

In Beirut, the justice minister confirmed that prosecutors had received a “red notice” arrest warrant from Interpol in respect of Ghosn and would take the necessary action.

The ministry said nothing had been received from Japanese prosecutors relating to an arrest warrant for his wife, Carole, who is in Beirut.

The Japanese warrant accuses her of falsely claiming not to know, or to have met, people connected to a company that received payments from Nissan Motor, part of which it subsequently transferred to a firm owned by Ghosn.