A fire broke out Thursday morning at a salvage yard in Clarksville, Indiana. It wasn't immediately clear what started the blaze at Kenny's Imports at 1222 McCullough Pike, officials said. No structures were involved in the fire and no injuries were reported, but the salvage yard holds hundreds of scrapped cars, Clarksville fire chief Brandon Skaggs said. Small explosions reported by other local media outlets were likely tires popping, said Justin Ames, spokesman for the Jeffersonville Fire Department. "With no fire hydrants in the area, water had to be trucked in from other fire departments," Skaggs said. Industrial equipment was used to move piles of junked cars to gain access to the fire's hot spots. Multiple agencies, including fire departments from Clarksville, Jeffersonville and Charlestown, among others, were called in for assistance. Some police departments, as well as the Salvation Army and Duke Energy also responded.