Fire has caused an unknown amount of damage at an Oshkosh business. Investigators say the blaze at Bedding Specialists was caused by a torch that an asphalt company was using to clear weeds in the parking lot. The fire started at 12:23 pm Tuesday and was under control within ten minutes. Upon arrival, firefighters reported heavy smoke coming from the building's south side. No one was in the building at the time, and no injuries have been reported.