Colleton County firefighters responded to a fire alarm Friday night at Colleton County High School that turned out to be caused by a short circuited battery charger.
Authorities say the a fire alarm activated around 10:08 p.m., after a military ball had ended and students and staff members were in the process of leaving the facility.
When firefighters arrived, they were met by a school official at the gym entrance who reported smoke in the building.
Once inside, firefighters reported minor smoke and haze, and traced the smoke to a large battery charger that charges a floor cleaning machine. The device had a short circuit and burned some internal electrical components, which caused the smoke and burning smell.
The device was approximately 15 feet from the smoke detector, firefighters say.