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An SUV slammed into the rear of a parked semi-trailer rig along Interstate 80 early Friday morning, killing one man and sending another to the hospital.

Utah Highway Patrol Sgt. Todd Royce said the collision occurred at 5:18 a.m. in a pullout-rest area just off westbound I-80 near mile marker 101, which is on the Salt Lake-Tooele county line.

The black SUV had just come off State Road 201 and onto the freeway when it went out of control and first struck a concrete barrier wall and then the semi's rear trailer at high speed, Royce said.

The driver, identified as 26-year-old Skyler Sanger of West Valley City, was dead at the scene; his 22-year-old male passenger was transported by ambulance to the hospital, where he was listed in critical condition.

The semi's 30-year-old male driver, asleep in the rig at the time, was unhurt.

The cause of the accident was under investigation, but alcohol is suspected to have played a factor.

Royce said the crash did not restrict westbound travel through the area.

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