Fire officials in Sparta are blaming a spark from a fuel pump for starting a damaging fire last week. Authorities with the Sparta Area Fire Department say 10 vehicles were destroyed Friday and several others were damaged. Fire crews were called to the building shortly before 7:00 p-m. A father and son say they were inside siphoning fuel out of one vehicle using a pump. A batter on the pump sparked, starting the fire. It took firefighters six hours to put all the flames out. No injuries were reported and the names of the father and son haven’t been released.