HENEFER, Summit County — Three people were hospitalized — but a 2-month-old infant was left unharmed — in a rollover crash involving two semitrailers Saturday morning.

A 20-year-old woman was driving a car with a 21-year-old man, a 14-year-old girl and the infant westbound on I-80 roughly six miles south of Henefer at about 11:45 a.m. when the crash occurred, Utah Highway Patrol reported.

The car was traveling in the left lane parallel to a semi hauling a tanker trailer. Both were approaching the port of entry, with a second semi slightly ahead of the tanker slowing to take the port of entry exit, UHP said.

The tanker semi did not yield to the car when it moved into the left lane, causing the driver to veer onto the left shoulder. The driver then overcorrected back to the right and hit the front of the semi, causing the car to strike the front of the second semi, UHP said.

The car then spun off the right side of the road, down an embankment and rolled.

The infant was properly restrained in a car seat and "completely unharmed, UHP said, but the car's driver and passengers weren't wearing their seat belts.

The 21-year-old man and 14-year-old girl were ejected from the vehicle. They were transported to local hospitals by helicopter in with critical injuries, UHP said.

The 20-year-old driver was not ejected but was "significantly injured," UHP said, and was transported by ambulance to Park City Medical Center. Medical staff then decided she should be flown by helicopter to Intermountain Medical Center.

Westbound I-80 was closed for about 90 minutes near the crash site.