Brownsville, TX (KRGV) — A fire burned through a two-story building that used to operate as a grocery store, according to the Brownsville Fire Department.

The fire occurred Sunday, Nov. 8, at the 800 block of Milpa Verde.

The fire department said an occupant reported seeing what appeared to be an electrical short circuit before the fire. When crews arrived, they found the building fully engulfed in flames.

The fire caused the building’s makeshift second-story structure to collapse. Firefighters worked to contain the fire and keep it from spreading to nearby properties.

One occupant had minor burns on the knuckles but declined medical care. No other injuries were reported.

Multiple pets kept in cages inside the building died in the fire. Smoke reached an adjacent property because of wind, but no fire damage was reported.

The cause remains under investigation, and the department has not confirmed whether an electrical problem started the fire.