Prosecutors in Tokyo have indicted the former chairman of automaker Nissan, Japanese state broadcaster NHK said Friday.

Carlos Ghosn was already being held on charges of financial misconduct, specifically for underreporting his pay by around 5 billion yen ($46m million) from 2011 to 2015.

The new charges relate to an alleged "aggravated breach of trust" and violations of laws by underreporting his salary by nearly $40 million of a separate three-year period, NHK said.

Ghosn, who denies the allegations, has been in detention in Tokyo since Nov. 2018.