Four trucks burned Thursday, Jan. 11 at a business near S. 6th St. and Layton Ave. The cause of the fire is under investigation. Fire officials said it caused $300,000 in damage. We're told Mortle Trucking lost three trucks as a result of the fire. The trucks are used to transport asphalt and gravel. Pilo's lost one truck. FOX6's viewers reported hearing explosions as the fire burned.