A house fire broke out Thursday afternoon in Ottawa. Ottawa and Naplate firefighters were called to the 1900 block of Pratt Lane, just to the northwest of OSF St. Elizabeth Medical Center near the Fox River. Firefighters arrived just after 1:30 to see the one-story home with smoke and flames coming from it. A few minutes into the firefight, it was reported the fire became heavy in the home's attic. About 15 minutes after the 9-1-1 call came in, the fire was said to be struck.