The Mesa County Sheriff's Office is investigating to see whether a second shooting actually took place Monday night.
Sheriff's deputies say four people in a truck were driving on the I-70 Business Loop near 30 Road when something hit their windshield. The passengers told authorities they saw two men walking along the sidewalk point a gun at the driver and then shoot at the truck.
There is a hole in the windshield, but deputies are trying to determine if it was from a bullet or a rock.
No one was hurt in the incident.