Eight people were found dead Thursday afternoon after a house fire in Oklahoma. Local and federal authorities are investigating the blaze as a possible homicide.

The fire was reported at roughly 4 p.m. in Broken Arrow, a suburb of Tulsa.

Officials did not provide details about who was killed or how the fire was caused, but they did not believe an immediate threat to the public existed.

"Preliminary reports are that this is going to be a homicide investigation," Broken Arrow police spokesperson Ethan Hutchins said. "We're still focused on trying to put out the fire and also investigate what happened to these victims."

FLORIDA FIREFIGHTERS BATTLE MASSIVE HOUSE FIRE, SAY ARSON IS LIKELY THE CAUSE

Firefighters near Broken Arrow fire scene

Eight people were found dead Thursday after a fire was extinguished at a Tulsa-area house. (Ian Maule/Tulsa World via AP)

Hutchins also called the scene "complex" and declined to comment on any search for the suspect.

"Understandably, this is a shock to Broken Arrow. It's a safe city," Hutchins said. "And so, we're asking the community to please pray and come together because this is something that we don't experience as a city very often."

Police say witnesses told them a family of eight lived in the house — two adults and six children.

TX POLICE INVESTIGATE HOUSE FIRE AFTER 3 BODIES FOUND

Pedestrians near scene on fire

People look on as Broken Arrow, Okla., police and fire department investigate the scene of a fire with multiple fatalities. (Ian Maule/Tulsa World via AP)

One witness said that she saw a column of smoke near the house while she was driving with her children.

"When I got closer to the house, I saw smoke pouring out from the very top of the house, which looked like maybe the attic," Catelin Powers said.

Powers reported that she saw two men and a woman outside the house. A third man appeared to carry an unconscious young adult woman out of the building. The witness then drove away to avoid traumatizing her children.

CLICK HERE TO GET THE FOX NEWS APP

The U.S. Bureau of Alcohol, Tobacco, Firearms and Explosives was assisting in the investigation.

Reuters and Associated Press contributed to this report.