A 9-year-old Alaska boy has died after he was dragged several hundred feet by his own cow at the Kenai Peninsula State Fair in Ninilchik.

The boy's father, Blair Martin, says his son Mathias died at Providence Alaska Medical Center on Friday night, hours after he was dragged by the cow at the fairgrounds. He says his son died from head injuries.

Martin says the boy put around his waist the rope attached to the cow's harness, and that something spooked the cow while Mathias was out of his family's view.

He says bystanders' cries for help alerted him to the cow "dragging what I just thought was a jacket, and it turned out to be his ragdoll body bouncing in the background."