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Serious Crash Shuts Down Both Sides Of Route 3 In Chelmsford

CHELMSFORD (CBS) -- Both sides of Route 3 were shut down near Interstate 495 as a med-flight helicopter responded to a serious crash around 2 p.m. Tuesday. It appeared a sedan ended up crushed underneath a pickup truck.

The crash occurred on the northbound side of the highway in Chelmsford.

Massachusetts State Police said life-threatening injuries were reported and one person was med-flighted to Boston with serious injuries.

At least one person was taken away in an ambulance. It's unclear how many people were hurt.

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A car was crushed underneath a pickup truck on Route 3 in Chelmsford Tuesday (WBZ-TV)

Traffic was heavily backed up in both directions. Southbound lanes have since reopened.

No other information is available at this time.

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