Updated: Explosion blows out house walls

An explosion blew out the walls of a Harrison Street house around 10:10 a.m. today. Tiffin Fire Chief William Ennis said firefighters are still investigating what caused the explosion at 21 Harrison St., but it is believed to be gas-related. No one was living in the house and no injuries were reported, he said. The gas company was on scene this morning to shut off the gas.

A crew started demolishing it around 6 p.m.