Spencer W. Gardner, 28, and Andrew J. Harrie, 30, killed in crash on June 9 on Interstate 80.

Two Taylorsville men died from injuries sustained in an early Monday morning crash on Interstate 80 near the Salt Lake-Tooele county line.

The Utah Highway Patrol identified the victims as Spencer W. Gardner, 28, and Andrew J. Harrie, 30.

About 3:30 a.m. Monday, Gardner was driving his black 2006 Scion eastbound when he drifted off the freeway and rolled about 10 miles west of Salt Lake City.

The cause of the crash was under investigation, but troopers were considering the possibility that Gardner fell asleep at the wheel.

Harrie, who was not believed to have been wearing a seat belt, was dead at the scene. Gardner, who was wearing a seat belt, died while being transported to the hospital, UHP said.