Stuart Johnson, Deseret News
A woman is transported to an AirMed helicopter along northbound I-15 near Alpine Thursday. She was injured in a rollover.

Two people were killed and another seriously injured in a series of crashes around the state.

A Colorado man was killed in a crash near Pleasant View in Weber County early Thursday morning.

The Utah Highway Patrol said it happened about 12:23 a.m. on southbound I-15. Troopers said Michael Scott Hess, 22, of Castle Rock, Colo., was in a vehicle that drifted off the road into the median, overcorrected and then went out of control. It rolled several times, ending up on its top in northbound traffic.

"We believe that fatigue is the main factor," UHP Trooper Cameron Roden said Thursday.

Hess was transported to Ogden's McKay-Dee Hospital Center, where he later died from head injuries.

In Sandy, a 30-year-old motorcyclist was killed in a crash Wednesday afternoon.

Tyler Carlston was behind two other vehicles, including a "big box truck," about 2:30 p.m. on 9700 South, said Sandy Police Sgt. Victor Quezada.

The driver of the van was trying to find an address and traveling much slower than the 35 mph speed limit.

Carlston decided to pass both vehicles in front of him by driving on the right shoulder, Quezada said. But just as he was moving up to pass, the truck pulled over to the shoulder to let others pass.

Carlston hit the van, which knocked the motorcycle down. The truck's rear wheels ran over both the motorcycle and Carlston. He was pronounced dead at the scene.

No citations were issued. Carlston was determined to be at fault for attempting to pass on the right.

And a woman was taken to the hospital by helicopter early Thursday after a rollover that closed down part of I-15 near Alpine.

Roden said a Centerville woman in her mid-20s was in car headed north on I-15 near milepost 284 around noon when one of her tires shredded and caused her vehicle to roll.

A helicopter transported the woman to Intermountain Medical Center, Roden said. She was in critical condition.

Troopers had to close down all but two northbound I-15 lanes while the helicopter landed. The freeway has reopened.

The agency is investigating speed as a possible factor in the crash.