Police had initially suggested there was a passenger in the car who had tested positive for drugs and alcohol but the prosecutor's office said on Thursday there had been no passenger.
France is on its highest state of security alert ahead of the Paris Olympics.
A soldier was stabbed and wounded by a man armed with a knife at a railway station in Paris on July 15 while French security services on Wednesday arrested an far-right sympathiser in eastern France on suspicion of plotting attacks to take place during the Olympics.
Published 18 July 2024, 13:53 IST