Bemidji Firefighters responded to a commercial structure fire late Sunday evening. The fire was reported at 10:33 pm on the 400 block of Beltrami Ave NW. Upon entry, crews found a fire burning in the ceiling space. Although they encountered high heat, they were able to quickly contain and extinguish the blaze after approximately 3 hours. No injuries were reported. The fire caused moderate damage to the business, and the cause is under investigation. So far, they say it does not appear to be suspicious.