At least eight San Antonio firefighter units were responding to a house fire near the Alamodome Wednesday.
The fire was reported just after 5 p.m. in the 200 block of Cactus Street downtown.
Views from Chopper 5 showed a large home fully engulfed in flames by 5:10 p.m.
SAFD conducted two searches and no one was in the home. Officials are investigating if a water heater caused the fire.