Structure Fire, June 30th 2009- At aprroximately 6:00 a.m. Northwood Fire Department was dispatched to 1905 Tracy Rd for a trailer fire. While enroute to the scene Medic 800 reported heavy smoke in the area. On arrival crews found a fully envolved trailer with fire threatning exposures on two sides. Neighboring trailers were searched and evacuated. The primary trailer was reported to be unoccupied. A defensive attack was conducted and the fire was extinguished. 2 civilians were treated on scene for complaints of smoke inhalation, and chest pain. Both exposure buildings and a vehicle in the driveway next door suffered some damage. The cause of the fire is under investigation.