SAN ANTONIO -

An elderly Northwest Side woman is safe after a fire nearly destroyed her home.

It happened in the 700 block of Micklejohn Street around 1:20 p.m. Sunday.

Arson investigators are trying to determine whether the fire started inside the woman’s home or around a van parked in her backyard.

“The whole back half of the house was fully involved when the first unit showed up,” said San Antonio Fire Department Battalion Chief Mark Black. "[Crews] did a quick search and rescue to determine that no one was still in the house.”

Black said the woman told investigators she heard a loud pop, but didn’t know her home was on fire.

“One of her neighbors, who happened to be a family member, saw the fire, banged on her front door and got her out in time,” Black said. “It looks like there were smoke detectors on the inside, but as far as we can tell, the batteries were probably dead because they weren’t making any noise.”

Due to the home’s location, the first crew on the scene had difficulty getting set up. The home is close to a church and Black said it appeared there was a service going on at the time of the fire.

“When the first unit showed up there were cars parked on both sides of the street,” Black said.

Investigators said a carport, van and storage shed were destroyed.

A damage estimate has not been determined.

No one was injured.

For a list of recent stories Cory Smith has done, click here.