Photo/IllutrationA staff member stands by a window at a Nissan car gallery in Tokyo on July 25. (AP Photo)

Automaker Nissan says its July-September profit tumbled to half of what it earned the previous year as sales and brand power crumbled following the arrest of its former Chairman Carlos Ghosn.

Nissan Motor Co. reported Tuesday that its fiscal second quarter profit totaled 59 billion yen ($541 million), down from 130 billion yen.

Quarterly sales slipped nearly 7 percent to 2.6 trillion yen as vehicle sales fell around the world, including the United States, Europe and Japan.

Ghosn, arrested in November 2018, is out on bail. It's unclear when his trial might start.

He faces various allegations, including under-reporting promised compensation in documents and breaching trust in making dubious payments.

Nissan was also charged. It reiterated its promise to improve governance, corporate culture and ethical standards.