Munich prosecutors said that Audi CEO Rupert Stadler was arrested on Monday because investigators saw the risk that he might seek to suppress evidence in connection with a diesel emissions probe.

“As part of an investigation into diesel affairs and Audi engines, the Munich prosecutor’s office executed an arrest warrant against Professor Rupert Stadler on June 18, 2018,” the Munich prosecutor’s office said in a statement.

A judge in Germany has ordered that Stadler be remanded in custody, it said, to prevent him from obstructing or hindering the diesel investigation.

The prosecutors’ office last week widened its emissions-cheating probe against Audi to include Stadler among the suspects accused of fraud and false advertising.

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