At least one person was taken to the hospital and all southbound lanes of Interstate 495 were blocked after two separate crashes in Andover this morning, State Police said. The first crash involved two cars on I-495 southbound, said Trooper Todd Nolan. As one of the drivers involved in the crash called 911 to notify police of the minor incident, a second crashed occurred in front of his car, Nolan said. One person was extricated from the wreckage of the second crash.
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