Police received a complaint at about 6:15 p.m. Friday of reckless driving on Highway 61 north of Wapello.
A deputy attempted to stop the vehicle, but the driver, Levi Swanson, 22, sped off.
After reaching Mediapolis, Swanson lost control of the vehicle, causing it to roll.
The passenger in the car, Kylan Burrell, 22, was declared dead at the scene.
Swanson was airlifted to Iowa City.
There’s no word on his condition.