Authorities said the accident happened around 8 p.m. when one vehicle stopped to make a turn and a second vehicle tried to pass on the right but sideswiped the first vehicle.
A third car then ran into the back of the first car.
Authorities said six of the victims were in one van. One person was flown to a local hospital.
The rest of the victims were taken to the hospital with non- life- threatening injuries.
Highway 55 had to be shutdown as crews cleared the scene.
It is unclear if charges have been filed.