TEWKSBURY -- A boat came loose off a trailer on Interstate 495 southbound about a mile before Exit 38, tying up traffic Saturday afternoon.

The incident took place just after 1 p.m. when a 21-foot boat being carried behind a GMC Suburban fell of its trailer in the left travel lane, Trooper Gary Comeau said. A crane was brought in to lift the boat to be towed away.

There were no injuries, Comeau said.