From our news partner TV9:
JOHNSON COUNTY, Iowa - A deadly crash has shut down a large portion of Highway 1 near Solon in Johnson County.
The driver of a car was killed after crashing into a semi near the intersection of 200th St. NE and Highway 1, according to authorities on scene. It's not clear which vehicle caused the crash, according to the Johnson County Sheriff's Office.
State Patrol accident reconstruction teams have been called to the scene. The name of the driver killed isn't being released at this time.