Firemen put out the flames with water and then Lehse started for his headquarters in Fargo with the truck. However, the heat from the fire and the water-soaked cargo created a cloud of steam which engulfed the truck as it sped down U. S. 81. Others put in urgent calls to the Fargo Fire Department, describing in lurid terms the burning truck. He said he drove to Hillsboro after the fire in order to follow Lehse’s steaming van back to the warehouse. ADVERTISEMENTHe said a crew in a Minnkota Power Co. truck flagged them down north of Grandin to tell them the van was afire.