Authorities said the truck driver remained on the scene and commercial units were called to inspect the vehicle's brakes, tires and overall function following the 9:40 am crash on Thursday.
Nevada Department of Transportation spokesman Tony Illia said the truck allegedly hit a vehicle that was following the group of about 20 bicyclists.
The group reportedly was on an informal ride to celebrate one of the bicyclist's retirement.
Video from the scene showed a white box truck stopped on the side of the highway with front-end damage.
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