A pedestrian was hit and killed on the I-25 frontage road in Northern Colorado early Friday morning.

According to Denver7, the incident happened around 5:30 a.m. Friday on the west side of I-25 near State Highway 52 near Frederick. The victim died at the scene.

The driver who hit the pedestrian stayed with them at the scene and was cooperative with authorities, Colorado State Patrol said. Investigators haven't yet figured out why the victim was on the road in the first place.

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