DETROIT U.S. auto safety regulators have decided not to open a formal investigation into the Oct. 2 fire that damaged a Tesla electric car near Seattle.

The National Highway Traffic Safety Administration says theres no indication at this time that the fire was caused by a safety defect.

The agency says it reviewed all available data and will continue to check consumer complaints and other information.

The Tesla Model S hit road debris on a freeway in Kent, Washington. The debris punctured a shield and the battery, touching off a fire that engulfed the front of the car.

The driver escaped without injury and firefighters put out the flames.