PARACHUTE, Colo. (CBS4) – Two people were killed in a crash on Interstate 70 on Colorado’s Western Slope on Wednesday morning.

The victims were standing outside of a vehicle near West Parachute when they were struck by a car and killed, according to the Colorado State Patrol.

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Trooper Nate Reid says a pickup truck pulling a cattle trailer got a flat tire about three miles west of Parachute on Wednesday morning. Two people in another vehicle — 19-year-old David Moore Jr., of Clifton; and 30-year-old Timothy Randall, of Grand Junction — stopped to help and were hit while they were next to the truck.

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It’s unclear if Moore and Randall were in the right lane of the highway or on the shoulder when they were struck by a box truck.

The driver who hit them stayed on the scene.

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The westbound lanes of the interstate had to be closed for several hours and traffic was being re-routed onto Highway 6. All lanes were reopened Wednesday afternoon.