 Fireworks likely caused two house fires in Montgomery County. Pete Peeringer with Fire and Rescue says in Aspen Hill, a person is without a home after fireworks sparked a fire causing more than $500,000 in damage. Homeowner was there sleeping. The smoke alarm activated. There was smoke in the house. A neighbor called saying that the roof of the house was on fire. In the Wheaton area, he says discarded fireworks were left against the side of a house.