A lawyer for Carlos Ghosn, Nissan's former chairman who skipped bail in Japan and fled to Lebanon, on Friday slammed a gaffe by the Japanese justice minister who said that Ghosn should "prove" his innocence.

Nissan says its former chairman, Carlos Ghosn, is still behind what it sees as "serious misconduct" found in an investigation at the Japanese automaker.

Japan's justice minister vowed Monday to strengthen border departure checks and review bail conditions after Nissan's former chairman, Carlos Ghosn, fled the country despite the stringent surveillance imposed as a condition of his release.

A Turkish airline company whose jets were used to fly former Nissan Chairman Carlos Ghosn from Japan to Lebanon said an employee falsified records and that Ghosn's name did not appear on any documentation related to the flights.