Five family members, including three young children, were hurt when the car they were in crashed on Interstate 215 Saturday afternoon, police said.
The Ford Fusion was southbound near 600 North when a Chevy Cavalier cut off the car about 12:30 p.m., said Utah Highway Patrol Sgt. Jeff Nigbur.
The driver lost control and the car went off the right side of the road. It hit a utility pole, then rolled onto its top.
A 3-year-old girl was thrown from the car and critically injured. Paramedics took the child to Primary Children's Medical Center, along with a 2-year-old boy who was not thrown but was seriously injured. A 5-month old baby suffered minor injuries and was taken to University Hospital.
The 2-year-old and the baby were properly restrained. Troopers are investigating whether the 3-year-old was buckled in.
The father suffered serious injuries and was taken to Intermountain Medical Center, while the mother went to University Hospital with minor injuries.
By 9:30 p.m. Saturday, the conditions of those hospitalized had improved, Nigbur said. All involved are expected to survive, he said.
The 700 North off-ramp was closed as troopers investigated the crash.
The Cavalier's driver continued to drive, and could be unaware of the accident.