ROCKPORT, MASS. (WHDH) - Authorities are investigating after a controlled blast at a construction site in Rockport on Friday morning left cars damaged at a<a class="excerpt-read-more" href="https://whdh.com/news/investigation-underway-after-controlled-blast-damages-vehicles-at-rockport-auto-service-center/">Read More</a>
Authorities said the 10 passengers on the MBTA train were uninjured during the crash. Both the train and police cruiser were reportedly moving at slow speeds.