ELLSWORTH, Wis. (AP) — A suspected drunken driver is behind bars in Pierce County after a passenger was ejected from the driver’s vehicle and died.

Police say 20-year-old Nicholas Rhiel was found unconscious on a residential road in Ellsworth early Saturday. He was flown to Regions Hospital in the Twin Cities where he died on Sunday.

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Police Chief Eric Ladwig said Monday that it’s not entirely clear on how Rhiel landed on the road, but it wasn’t due to a crash. Police caught up with the driver, who was arrested and jailed.

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Ladwig says the investigation is still ongoing.

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