MINDEN, Iowa (AP) — Authorities say the driver of a grain hauler died after the truck slammed into an unoccupied house in Minden in southwest Iowa. The Pottawattamie County sheriff’s office says emergency crews found 53-year-old Calvin Leaders, of Underwood, unconscious in the truck after the accident Friday morning. He died at a local hospital.

Chief Deputy John Reynolds says the grain hauler, which was empty, left the road and hit the house shortly after 7 a.m. No one was home at the time. Reynolds says it’s unknown if Leaders may have suffered a medical condition. An autopsy is pending.