A speeding car ran a stop sign in western Wisconsin and went airborne, pitching its unbelted driver to his death as it rolled several times until coming to a halt upside-down, authorities said Sunday.

The crash occurred northeast of Baldwin about 5:45 p.m. Saturday on County Hwy. E near County Hwy. D, according to the St. Croix County Sheriff’s Office.

Killed was Oscar Flores-Saldivar, 35, of Amery, Wis., the Sheriff’s Office said.

A witness reported to authorities that the car was “traveling at a high rate of speed [and] failed to stop at the stop sign” before flying into a field. Flores-Saldivar was found outside the car and was dead, according to a Sheriff’s Office statement.

Baldwin is about 20 miles east of Hudson, Wis.