At approximately 7:30 p.m., Austin Fire Department crews reported to a fire at a single-family home at 1505 Holly Street.

AUSTIN, Texas — Shortly after extinguishing a fire at a house on Holly Street Friday night, Austin firefighters discovered a body inside the house.

"I don't understand some of the things that happen the way they do," said Dave Hernandez, who lives a few houses down from where the fire happened.

It's been a long Saturday for Hernandez and many of the neighbors.

"We used to see each other at the grocery store," Hernandez said. "We would have conversations and talk about what goes on every day."

His neighbor was killed by an overnight fire.

"We all spent a lot of time at the grocery story because we were family here," Hernandez said.

"I could see the smoke come out of the house real bad and the flames were shooting up from the ceiling," Hernandez said. "I was worried it was going to spread over to my house and everything."

Around 7 p.m., Austin Fire Department crews reported to a fire at a single-family home at 1505 Holly Street.

The fire was extinguished within 10 minutes of the firefighters arrival, Austin Fire Division Chief Palmer Buck told KVUE.

"It was pretty clear it was going to spread to the next house over if they haven't jumped on it so quickly," said Thomas Pastorious, who lives next door to the burned home.

Pastorious thanked the quick response of firefighters for keeping the flames from spreading to nearby homes.

"It was reassuring to see them respond so quickly; it made me have faith in the public departments," he said.

AFD originally stated on Twitter that there were no reported injuries. But Buck said sometime after 7:20 p.m., firefighters located a body inside the home.

"[The] home suffered pretty significant damage. The back side of the home was destroyed by the fire and with smoke, fire, heavy damage throughout the rest of the building," Buck said.

Buck told KVUE a person walked by the house, saw the fire and called it in to AFD.

"While we don't know what happened here tonight, we want to remind everyone that smoke alarms do save lives and having a smoke alarm doubles your chances of getting out alive," Buck said.

Investigators will be conducting a joint investigation with the Austin Police Department.

AFD said Saturday that the fire remains under investigation, and the medical examiner continues to work on victim identification.