Impairment suspected in crash that injured DPS sergeant and trooper

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Van Rothermel, 19, and truck used by DPS troopers (Source: Coconino County Sheriff's Office & Arizona Department of Public Safety) Van Rothermel, 19, and truck used by DPS troopers (Source: Coconino County Sheriff's Office & Arizona Department of Public Safety)
(Source: Arizona Department of Public Safety) (Source: Arizona Department of Public Safety)
Van Rothermel, 19, arrested for DUI after rear-ending a DPS vehicle on I-17 near Flagstaff. (Source: Coconino County Sheriff's Office) Van Rothermel, 19, arrested for DUI after rear-ending a DPS vehicle on I-17 near Flagstaff. (Source: Coconino County Sheriff's Office)
Van Rothermel, 19, arrested for DUI after rear-ending a DPS vehicle on I-17 near Flagstaff. (Source: Coconino County Sheriff's Office) Van Rothermel, 19, arrested for DUI after rear-ending a DPS vehicle on I-17 near Flagstaff. (Source: Coconino County Sheriff's Office)
(Source: Arizona Department of Public Safety) (Source: Arizona Department of Public Safety)
FLAGSTAFF, AZ (3TV/CBS 5) -

A DPS sergeant and trooper have been hurt after their vehicle was rear-ended on I-17 south of Flagstaff.

The crash happened near Kachina Boulevard.

A DPS box truck delivering dog food to DPS canine units was rear-ended by another vehicle, forcing the box truck to roll on its side.

A sergeant and a trooper were inside the truck at the time of the collision.

The sergeant has superficial injuries The trooper suffered serious but not life-threatening injuries.

Both were taken by ground ambulance to Flagstaff Medical Center.

The driver of the van that struck the DPS box truck was taken into custody.

He has been identified as 19-year-old Van R. Rothermel of Tempe.

He was booked into the Coconino County jail for DUI, two counts of aggravated assault, endangerment and possession of drugs. 

One lane of southbound I-17 was closed during the investigation.

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