Five people were sent to the hospital after an accident just east of Eldridge.
It happened just before 6 p.m. Thursday at the intersection of 210th Avenue and 240th Street in Scott County.
Police say a vehicle driven by a 44-year-old man from Bettendorf failed to yield and T-boned a car driven by a 61-year-old woman from Princeton, Iowa.
A 9-year-old and 7-year-old along with the drivers were taken to the hospital with non-life-threatening injuries.
An 81-year-old woman was in the backseat of the car that was hit. She was transported to Iowa City with severe injuries. She remains in critical condition.
Names have not been released.