A 7-year-old Missouri boy has died after he fell off a hayride and was struck by the trailer he had been riding in.

The Jackson County Sheriff’s office says the accident happened Saturday night around 7:40 p.m., in the 13000 block of Pratt Road near Lee’s Summit, just east of James A. Reed Memorial Wildlife Area.

The Missouri State Highway Patrol says a tractor was pulling the trailer and that the boy was “clinging” to the trailer after he fell out.

The Kansas City Star reports that Jackson County Sheriff Darryl Forté said the boy fell off and was struck and critically wounded by the trailer. He died at Lee's Summit Medical Center Saturday night.

Authorities have not yet released the boy’s name.