A small campfire in a Redmond backyard quickly spread to buildings and trees in the area.  Just before 5 p.m. Redmond Fire and Rescue received a call about the fire on NW 38th Street.  The investigation revealed that apparently, the person who started the campfire threw some fireworks into it and the devices became airborne, spreading the fire to nearby outbuildings and trees, including a neighbors' shed.  Firefighters were able to quickly douse the flames, but one person received minor injuries and was taken to the hospital.  Damages are undetermined at this time.