A man died after being rescued from a burning home in South Gate early Wednesday morning, officials said.
A neighbor on the next street over first called 911 at about 2:50 a.m. to report smelling natural gas in the area, Los Angeles County Fire Department Battalion Chief William Gamble told KTLA.
Firefighters checked out the area and discovered a home on fire in the 10000 block of San Vincente Avenue, south of Tweedy Boulevard, he said.
"They initiated a structure fire response (and) began an aggressive interior fire attack in the offensive mode," the battalion chief said.
"We located one adult male victim who was pulled from the home," Gamble said.
The man was in cardiac arrest when taken to a hospital. Later in the afternoon, fire officials issued a news release stating the blaze resulted in a fatality.
Firefighters extinguished the flames about 30 minutes after arriving, according to Gamble.
"We did encounter some flooring that had given way into a basement. That added complexity to the fire fight," the battalion chief said.
Firefighters also had to contend with "packrat conditions" inside the home, according Gamble.
The cause of the fire remained under investigation.
Gamble said firefighters had not been able to find any smoke detectors inside the damaged house.
KTLA's Erika Martin contributed to this report.