A fire early Friday morning destroyed an attached shed at Ursa Minor Brewing at 2415 West Superior Street in Duluth. The shed was fully involved in fire when Duluth Fire Department crews arrived around 12:43 a-m. Damage estimates are 75 thousand dollars as the shed contained a fork lift and refrigeration unit among other items. The building was not occupied at the time of the fire and there were no injuries. The cause of the fire is under investigation by the Duluth Fire Marshal's Office