Authorities say a tractor someone left unattended while filling up on diesel fuel caused an Anamosa barn to go up in flames Tuesday night.
The fire started at 5:07 p.m. at 4149 Buffalo Ridge Road. There were no injuries, but the barn is a loss. Law enforcement say the fire does not appear to be suspicious.
Linn County Sheriff's Office, Center Point Ambulance Service and Anamosa, Coggon, Prairieburg and Springville Fire Departments responded.