 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. Some people had discarded some of these fireworks earlier in the day, and they smoldered and erupted into flame later. And after a two-car crash on I-270 near Montrose Road, investigators found... Fairly large quantity of fireworks. They were strewn about the road.