(PORT HOPE) -- Authorities say at least three cattle died following a barn fire in the Thumb. Reports say crews responded to the blaze just before 9 a.m. Wednesday at 6750 Minnick Road near Port Hope. Most of the cattle in the barn were removed safely. No people were reported injured. The barn, a skid steer, and hay was destroyed in the blaze, but an attached lean-to structure was saved. Port Hope firefighters were assisted by the Harbor Beach and Sigel and Sherman Township Fire Departments. The cause of the fire is under investigation.