SAN ANTONIO – A propane leak is believed to have sparked a quick, localized flash fire at a home that was being worked on in Bexar County, sending two adults to the hospital.

According to Bexar County Public Information Officer Monica Ramos, the incident was “a flash fire” that was “very, very quick,” “very, very localized and pretty small in nature.” She said the call first came in about 3:10 to The Flying H Cattle Ranch.

The home was “currently being worked on,” Ramos said. She said the individuals inside were working on “the propane stove” that was attached to a propane tank, and “they believe that’s where the leak came from that caused that flash fire explosion.”

Ramos said two adults were transported, but she did not have information about the nature of their injuries. She also said she did not know whether the people transported were construction workers or homeowners.

Damage at the scene was minimal, Ramos said, adding that because it was a flash fire, “damage is very, very minimal. It’s very, very limited. Really not a whole lot of damage at all.”

Bexar County fire marshals are leading the investigation, Ramos said, not the sheriff’s office. She said the fire marshal’s office will conduct a thorough investigation and determine next steps based on its assessment and findings.

Asked about animals because the location was described as a cattle ranch, Ramos said she had no information on animals and noted, “As you can see behind me, there are no cattle.”

The incident remains under investigation by Bexar County Fire officials.