By WCCO-TV Staff

MINNEAPOLIS (WCCO) — A 27-year-old motorcyclist died early Thursday morning in western Wisconsin after not yielding to a roundabout and colliding with the a street sign.

The St. Croix County Sheriff’s Office says the crash happened just before 2 a.m. at the Main Street roundabout with STH 35 in Houlton, Wisconsin, which is just across the St. Croix River from Stillwater.

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Investigators say Anthony Oellerich, of River Falls, Wisconsin, was traveling west on STH 35 when he failed to negotiate the roundabout and crashed into a yield sign. His body was thrown into the grassy area in the middle of the roundabout. He was not wearing a helmet.

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Emergency crews tried to help Oellerich, but he was pronounced dead at the scene.

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The crash remains under investigation, the sheriff’s office says.