First responders were working to free a driver from a truck crash on the Massachusetts Turnpike near the Westboro-Grafton line on Wednesday, officials said.
The tractor-trailer rolled over Interstate 90 going west not far from the 101-mile mark, according to the Massachusetts Department of Transportation and Westboro Fire Department.
Multiple lanes of the highway were blocked, including some on the other side, where first responders were working.
A medical helicopter flew the injured driver to the hospital, firefighters said.
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Later Wednesday, Westboro firefighters were called to another serious crash on the Turnpike, this one near Interstate 495. Multiple people were hurt when a vehicle appeared to have rear-ended a pickup truck.
Further details weren't immediately available.