FILE PHOTO: Former Nissan Motor Chairman Carlos Ghosn leaves the Tokyo Detention House in Tokyo, Japan in this photo taken by Kyodo April 25, 2019. Mandatory credit Kyodo/via REUTERS

ZURICH (Reuters) - Swiss prosecutors said on Tuesday they are assisting Japanese authorities in their investigation into former Renault RENA.PA and Nissan Motor 7201.T boss Carlos Ghosn, who faces charges of fraud and misconduct.

Ghosn, who has denied wrongdoing and has been freed on $4.5 million bail, is pursuing claims against Nissan and Mitsubishi Motors 7211.T, who ousted him as chairman of their alliance after raising allegations of embezzlement.

“The request for legal assistance from Japan has been delegated to the Zurich public prosecutor’s office for enforcement and is currently being processed,” the office said, without giving any further detail on what it had been asked for.

“The Zurich public prosecutor’s office is not conducting its own proceedings,” it added.