ARAPAHOE COUNTY, Colo. — Colorado State Patrol crime investigators are looking into the circumstances that led to a deadly crash on Interstate 70 east of Byers Wednesday morning.
The fatal crash happened while CSP troopers were investigating a single-vehicle, property-damage-only semi crash on westbound I-70 near milepost 321 at around 6:45 a.m. Wednesday.
Watch the latest headlines from Denver7 in the video player below:
As troopers were working the scene, one of their patrol cars was struck by a Ford F-150, according to a news release.
Initial reports show the trooper was partially blocking the left lane of travel while tow trucks were removing the semi from the center median when the Ford F-150, driven by an 18-year-old man, lost control, striking the patrol vehicle and sideswiping the passenger side. The F-150 continued westbound, entering the center median, striking the guardrail, and then striking the rear driver's side of the semi-trailer.
The 18-year-old driver of the F-150 was taken to an area hospital for serious injuries. The passenger of the pickup, a 19-year-old man, was taken to a hospital with life-threatening injuries and later died, according to the release.

The trooper involved was taken to an area hospital for a precautionary medical evaluation; no injuries were reported at the scene.
The name of the 19-year-old will be released by the Arapahoe County Coroner once family has been notified.
The Colorado State Patrol Vehicular Crimes Unit is investigating this crash.
Denver7 is committed to making a difference in our community by standing up for what's right, listening, lending a helping hand and following through on promises. See that work in action, in the videos above.