The man who was hit reportedly was tending to another disabled vehicle by the side of the road when he was struck.
That vehicle was possibly either located or the driver returned to the scene about 15 minutes later.
No word on police charges against that driver.
The man who was struck had serious- but not believed to be life-threatening injuries a KC-MO FD-EMS paramedic said- and he was taken to a Metro hospital.
Northbound U.S. 71 was closed at Blue Ridge Extention while police investigated the incident.
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