HOUSTON -

A 69-year-old woman died Thursday after she was trapped in her burning southeast Houston home.

Neighbors said they heard explosions before the fire broke out shortly after 1 a.m. at the house on Sagetree Drive and Sagecliff Drive.

When firefighters arrived, the fire was so intense, they could not get inside and had to battle the flames from the outside.

When firefighters were able to get in the home, they found the body of a 69-year-old woman on a couch. She used a wheelchair to get around, officials said.

A man in the home got out safely. The man is being questioned by police.

"There was another gentleman home at the time. We're getting conflicting stories right now. It's under investigation. It's unknown at this time, but it is a possibility," said Clennis Tyler with the Houston Fire Department.

"I heard an explosion that just shook the entire house. It shook (my) house," neighbor Aaron Rios said.

Firefighters said the woman was on oxygen and smoked, which may have played a role in the fire.

The cause of the fire is under investigation.

The victim's name was not released.