By Tim SchmidtRecord Managing EditorAn investigation is underway to determine who may have been responsible for starting a vehicle fire that nearly spread to a nearby residence.The fire was reported at 11:26 p.m. Monday, Dec. 14, in the 2300 block of Balboa Circle on the city’s north side.The blaze was believed to be suspicious in nature after an eyewitness reported that an unknown person had thrown an object underneath a full-sized Chevrolet pickup that was parked in the home’s driveway, according to firefighters.The vehicle was heavily damaged by the fire, which was largely contained in the engine compartment of the truck. Warrenton firefighters were able to quickly knock down the flames and keep damage to the residence and a nearby parked vehicle to a minimum, Fire Chief Mike Owenby said.“It melted the siding on the front of the garage,” Owenby said.At least two people were in the home at the time and were alerted by a neighbor about the fire. No injuries were reported. Firefighters were on the scene for approximately 3 ½ hours.Anyone with information on the fire should contact the Warrenton Police Department at 636-456-7088 or the Missouri State Fire Marshal’s office at 1-800-392-7766.Owenby said last week’s fire was another example of the benefit of having paid firefighters working every shift, a move that leads to quicker response times.“A few more minutes, it could have made a big difference in the level of damage to the structure,” he said. “Getting them there quickly possibly saved this residence.”Fire