Raw video: ZBT house burns at GWU in Washington, DC.

Above is raw video from DC Fire & EMS Department videographer Vito Maggiolo taken during a fire yesterday afternoon at the Zeta Beta Tau house at George Washington University. Spokesman Pete Piringer wrote on Twitter early this morning that the fire at 605 21st Street, Northwest started in a bathroom ceiling on the top floor and was electrical in nature. Damage is estimated at $100,000.    

Many of the students had already moved out, but the fire was discovered when a student moving in smelled smoke in the building.

Here's what Piringer told the AP:

Piringer says it took firefighters time to find where the fire was burning. They discovered the blaze in the walls and into the attic. No one was injured. Damage at the house is significant, making it uninhabitable.

Piringer says the fire appears to be accidental, but authorities are still investigating the cause.

From Lauren French at The GW Hatchet:

Pete Piringer, spokesman for the D.C. fire and emergency medical services department, said the “significant fire” at 605 21st Street erupted within the upper walls of the townhouse, on the second and third floors and in the attic.

Firefighters inside the townhouse could not immediately detect where the fire was located, Piringer said, but noted heavy smoke.

He said a preliminary investigation led firefighters to believe there was “burning for a while, undetected in the walls.” It took 15 to 20 minutes for officers “to get a handle” because the fire “wasn’t outwardly visible,” Piringer said.