Tokyo (CNN Business) Former Nissan boss Carlos Ghosn has again professed his innocence in a new video and accused executives at the Japanese carmaker of conspiring to remove him from power.

"This is about a plot, this is about conspiracy, this is about backstabbing," Ghosn said in the seven-minute video, which was recorded before he was arrested last week in Japan for a fourth time

Renault RNLSY Ghosn, who once led a global autos alliance that consisted of, Nissan and Mitsubishi Motors, claimed in the video that fears over a merger had prompted a revolt at Nissan and led to his ouster.

Neither Ghosn nor his lawyer, Junichiro Hironaka, offered a response to the latest allegations of financial misconduct that prompted the auto executive's arrest and return to jail.

Nissan declined to comment on the video, but a spokesperson for the company said an "internal investigation has uncovered substantial evidence of blatantly unethical conduct" by Ghosn.

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