German prosecutors said on Monday they had raided the home of Rupert Stadler, chief executive of Volkswagen subsidiary Audi, over suspicion of fraud related to diesel emissions cheating by the firm.
"Since May 30 the chief executive of Audi Professor Rupert Stadler and another member of the current executive board have been regarded as suspects," prosecutors in the Bavarian capital Munich said in a statement. An Audi spokesman told AFP the firm was co-operating.