A serious crash Saturday night on Interstate 495 in Andover, Massachusetts, temporarily closed the northbound side of the highway to accommodate a medical helicopter at the scene.
The Massachusetts Department of Transportation said the crash occurred on I-495 northbound at Exit 99 and that delays should be expected.
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The transportation agency initially said the two right lanes were closed, and then said all northbound lanes were closed for MedFlight operations. They later said one lane had reopened.
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There was no word on the extent or number of injuries. MassDOT has only said there are serious injuries, and that a medical helicopter has been called.
State and local police have not released any information yet, and no other details were immediately available late Saturday night.
