DUBUQUE, Iowa (AP) – Authorities say firefighters rescued four people from a fire that erupted in a downtown Dubuque building. The blaze was reported around 12:30 p.m. Monday in a building that contained apartments and businesses. Three people were taken to a hospital for treatment of smoke inhalation. A city news release says some occupants were trapped by smoke on the building’s upper floors and were rescued by firefighters using ground ladders. The fire started in a first-floor kitchen. Authorities say the flames were knocked down about 10 minutes after firefighters arrived.