Former Nissan Motor Co. Chairman Carlos Ghosn, former Nissan representative director Greg and close aide Kelly and Nissan itself were indicted Monday over allegedly under reporting of 5 billion yen (44.5 million U.S. dollars) of Ghosn's remuneration in the company's financial statements during the five years through March 2015.

Ghosn and Kelly were also served fresh arrest warrants Monday for the continuation of the financial impropriety through March 2018.

This may see the pair slapped with an additional 20 days of detention in Tokyo through Dec. 30, sources close to the matter said.

Ghosn, 64, was initially arrested by prosecutors on Nov. 19 on a charge of violating a financial law by understating his earnings in financial reports for the five fiscal years from fiscal 2010.

Japanese law stipulates that the limit a suspect can be held without charge is 23 days if an arrest warrant was issued by police and 22 days if it was issued by prosecutors.

In theory, as new charges and fresh warrants are served, as long as they are approved by a court, a suspect can be held in detention in Japan indefinitely.