Petaluma police are investigating a vehicle fire that might have been intentionally started. Last Wednesday night, a burning vehicle was reported on the 1400 block of South McDowell Boulevard. Firefighters managed to contain the flames and found signs of accelerant possibly used on the vehicle, a 2000 silver Acura. Surveillance footage shows a white male adult park the Acura and leave in an unknown red sedan before the fire started. Anyone with information should contact Petaluma Police.