ST. GEORGE — The St. George Fire Department responded to a Sunday night house fire on Broad Court.

According to the department, fire crews arrived around 8:10 p.m. to find smoke coming from a single-story residence.

Firefighters extinguished the flames within minutes before checking for extension into the attic and extinguishing remaining hot spots.

Investigators determined that the fire was caused by a portable air conditioning unit being powered by an extension cord connected to a power strip.

The American Red Cross was requested to assist the residents of the home.

There were no reported injuries.