https://phys.org/news/2019-01-nissan-sec-probe.html

He declined to provide any further details. Bloomberg News reported the probe was focused on whether Nissan disclosed executive pay properly and had adequate controls to prevent improper payments.

News of the investigation comes as Nissan deals with the fallout from the shock November 19 arrest of its former chairman Carlos Ghosn, who remains in a Tokyo detention centre facing three charges of financial impropriety.