Three lanes of Interstate 495 North in Lowell have been closed after a tractor-trailer rollover this afternoon, State Police said.

The truck, which was hauling cardboard boxes, crashed between Exits 37 and 38 at 1 p.m., Trooper Thomas Murphy said.

The operator was not seriously injured, Murphy said.

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Only the right lane is open for travel. Traffic has been impacted, Murphy said.

No further information was immediately available.