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BOONE, N.C. (AP) -- Authorities say a North Carolina Department of Transportation worker trying to remove a tree from a road in Watauga County has been struck and killed by a vehicle.

Officials said 55-year-old David Cook died at the scene of the crash from head injuries around 4:30 a.m. Tuesday.

The DOT says Cook was with a second worker on the road east of Boone.

State troopers are investigating the crash.

The DOT says Cook was a transportation supervisor and worked for the agency for more than seven years.

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