UPDATE JAN. 20: The motorcyclist who died in this crash has been identified by NHP as 65-year-old Bill Dinh, and the passenger was identified as 64-year-old Mary Nguyen.
Both Dinh and Nguyen were from Garden Grove, California.
Troopers say a husband and wife died after their motorcycle slid into oncoming traffic as they rode with a group of motorcyclists on Highway 160.
The Nevada Highway Patrol closed the section of highway near Mountain Springs as they worked to determine why the driver lost control.
They say the driver of the other vehicle involved is cooperating.
They do not believe alcohol or drugs were a factor in the accident.
The couple was riding toward Las Vegas with a group of seven other motorcycles when they crashed.
Troopers expected the highway to be closed until at least 2 a.m. Saturday.