VIDEO: Massive explosion rips through downtown Nashville

A massive explosion ripped through part of downtown Nashville early on Christmas morning.

The Metro Nashville Office of Emergency Management told local broadcaster News 2 that a parked RV exploded and damaged several surrounding buildings.

Police said there were no reported injuries, and that they believe the explosion was intentional.

The FBI and the Bureau of Alcohol Tobacco and Firearms are investigating.

A man who lives nearby, Buck McCoy, posted a video to Facebook showing the aftermath of the explosion. His windows are completely blown out and water is pouring down from the ceiling of his home.

Alarms whir in the background, barely masking the cries of others whose Christmas mornings was ruined by the blast.