POST FALLS, Idaho (AP) — Authorities are investigating after a Mercedes-Benz was destroyed in a fire that was likely caused by arson. The Coeur d'Alene Press reports that Post Falls officials responded Sunday to reports of a 2010 Mercedes-Benz E350 car engulfed by flames. Kootenai County Fire and Rescue Fire Marshal Jeryl Archer says the blaze is being investigated as arson. A suspect was seen breaking into the driver's side window and throwing something inside the vehicle before the start of the fire.