Firefighters responded to a report of a fire in a three story apartment building at 13437 Greenwood Avenue North in the Bitter Lake neighborhood just before 11:30 p.m. on Monday night. When the first units arrived on the scene they found smoke in the hallways and a small fire in an interior stairwell on the first floor. Fire Investigators determined that this fire was intentionally set. The fire caused $1,700 in damage to the carpet and a door in the stairwell. There were no injuries.