CHELMSFORD, MASS. (WHDH) - An investigation is underway after a pedestrian was fatally struck by a tractor-trailer in Chelmsford on Thursday afternoon.
Emergency crews responding to a report of a crash involving a pedestrian on the northbound side of Route 3 near Exit 84 around 2:15 p.m. found a 77-year-old man who had been struck in the area of the breakdown lane, according to Massachusetts State Police.
The victim got out of their disabled vehicle and was partially in the right travel lane when they were struck, law enforcement sources said.
The driver of the truck, a 44-year-old man from Cambridge, remained at the scene and is said to be cooperating with police.
All lanes have reopened on Route 3 following hours of lengthy traffic delays.
The Middlesex District Attorney’s Office is assisting with the investigation.
There were no additional details immediately available.
This is a developing story; stay with 7NEWS on-air and online for the latest updates.
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