It happened around 8 o'clock this morning on 45 Highway at Waldron.
According to the Platte County Sheriff's Department, three vehicles were involved in the crash.
KMBC reports that the driver of the tractor-trailer crossed the center line and hit a truck, then a mini-van. The driver of truck was taken to the hospital with minor injuries. The tractor-trailer driver was not hurt.
The accident closed 45 Highway near the crash site.
Drivers are advised to use Jones-Meyer Road as a detour.