The South Dakota Highway Patrol is investigating a fatal two-vehicle crash in Lawrence County.
The incident involved a 2019 Indian motorcycle traveling north on US 385 near Lead, S.D.
The 21-year-old motorcycle driver, who was speeding, failed to negotiate a curve and was thrown from the motorcycle. He slid underneath a pickup traveling in the opposite direction.
Despite wearing a helmet, the motorcyclist succumbed to his injuries.
The 63-year-old pickup driver was unharmed.
The names of those involved have not been disclosed.