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Spearfish Man Dies in Motorcycle Crash on I-90 Near Mile Marker 19.

SPEARFISH, S.D. (KOTA) – A 56-year-old man was killed Saturday in a motorcycle crash on Interstate 90, just east of Spearfish.

The incident occurred at approximately 5:45 p.m. near mile marker 19. Authorities said the victim was riding a 1995 Harley-Davidson FLHTCU westbound when he lost control and was thrown from the motorcycle.

Emergency responders transported the man to a Spearfish hospital, where he was later transferred to a Rapid City facility, where he succumbed to his injuries Sunday.

According to the South Dakota Highway Patrol, the rider was not wearing a helmet. His identity has not been disclosed pending family notification.

The investigation into the crash is ongoing, and additional details may be released as they become available.

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