The former boss of VW may have known the carmaker was cheating on emissions tests earlier than he admitted, German prosecutors have said.
Martin Winterkorn quit in September 2015 after VW admitted to using software to lower the emissions from its diesel vehicles during tests.
He has since denied knowing of the violations until late in August 2015, shortly before the board reported them.
But German authorities said they were now investigating him for fraud.
Prosecutors from the German region of Braunschweig said they had searched 28 homes and offices this week in connection with the scandal.
As a result, the number of people accused of misconduct had risen from 21 to 37, including Mr Winterkorn...Read more...