 Authorities say an explosion at an auto repair shop in Ohio has left three people dead and another person hospitalized. The Tuesday afternoon blast at Jimbo's Auto Repair in Hillsborough sparked a massive fire that engulfed the building and spewed thick black smoke that was visible for miles. The blast was felt at several nearby sites including the Pink Creek Joint EMS and Fire District, whose crews quickly responded to the scene. The cause of the explosion remains under investigation. The names of the victims and further information about them have not been released. The injured person was still in a hospital Wednesday in stable condition.