Updated 1:20 p.m. to reflect that a body was found.

Garland firefighters discovered the body of an adult woman in a residence after a fire broke out early Thursday morning.

Firefighters had been searching for an elderly woman they believe was home at the time of the fire. The body, found at 12:30 p.m., has not yet been positively identified, officials said.

The fire was reported at 12:51 a.m. in the 4900 block of Collingwood Drive, and the home was engulfed in flames when firefighters arrived four minutes later.

Neighbors said the woman was inside, but firefighters said heavy fire, the amount of debris and the structural frailty of the home made finding the woman difficult.

The department brought in search dogs to aid in finding the woman, fire officials said.

Firefighters dispatched two fire trucks, three fire engines and an ambulance. Later, an additional two engines and another ambulance were called in.

The cause of the fire is under investigation. It is unclear if the home had working smoke detectors, officials said.

Staff writer Dana Branham contributed to this report.