The fire at Valkommen Plaza, 310 Seventh St. was reported shortly after 6 p.m., and was contained to the apartment by a sprinkler, according to a Rockford Fire Department news release.
The apartment had minor smoke damage, but substantial water damage extended to the second floor and is estimated to total $50,000.
The cause of the fire was accidental, according to the news release. One adult occupant of the building was relocated by the Red Cross.
Four engines and 29 firefighters responded.
