A video online shows a Boston police cruiser engulfed in flames in the middle of the intersection of Massachusetts Avenue and Tremont Street in the early hours of Sunday morning.

A YouTube account named External Affairs Porter captured when firefighters arrived on scene to extinguish the flames as huge plumes of smoke drifted off into the night.

One street is lined with several cruisers with their lights flashing as at least two ladder trucks arrive to douse the flames.

“There were guys shooting fireworks at the cruisers,” the person behind the camera tells a passerby who stops to ask about what happened.

The video shows the aftermath of a recent example of a nationwide trend called street “takeovers,” a phenomenon fueled by social media that leads to large-scale gatherings of unru

See Full Page