Emergency crews are responding after an MBTA commuter rail train hit a tractor-trailer in Littleton, Mass. Friday, according to Littleton police.
Police said the King St. extension railroad crossing is closed for the investigation.
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MBTA Transit police said there were no serious injuries, but there is substantial damage to the tractor-trailer and the cleanup will cause delays on the Fitchburg line.
This is the same line where a different train hit a small sidewalk plow on the tracks earlier Friday.
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