UPDATE: Charleston home has to be torn down after Friday night fire

Investigators are searching for answers as to why and how a three story abandoned building on Charleston's west end caught fire late Friday night.

Charleston firefighters fought the flames for hours. Investigators tell WSAZ the conditions were dangerous, as the floors were caving in inside the burning home.

Fire officials say the building was boarded up and filled junk and debris. Although no one was living in the home, firefighters tell WSAZ electric was still connected in the building. CFD is considering the fire to be suspicious but is still investigating.

The fire forced crews to shut down 5th Avenue between Iowa and Patrick Streets for hours while put the fire out. Roads in the area are now open.

Crews spent a portion of Saturday morning sifting through debris and tell WSAZ they even called in an excavator to tear the building down. They say the home is a total loss.

A house is on fire Friday night in the 5th Avenue area of Charleston, Metro 911 dispatchers say.

The fire started just before 10 p.m. Friday, closing 5th Avenue between Iowa and Patrick streets.

Dispatchers say the structure appears to be a three-level home. There's no word if anyone is inside the home at this time.

The Schoenbaum Family Enrichment Center is located along the stretch of closed roadway.

Charleston Police and EMS are also on the scene.

Keep checking WSAZ Mobile and WSAZ.com for the latest information.