A multiple-vehicle crash on Route 3 at Interstate 495 in Chelmsford, Massachusetts, has resulted in serious injuries, according to state police.
The crash temporarily closed Route 3 northbound at I-495 while crews responded to the scene. By about 3 p.m., only the right travel lane was closed pending the investigation.
At least one person was taken by medical helicopter to a Boston hospital with serious injuries, according to state police. It's unclear how many others were hurt.
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No other information was available.