A single-story structure that houses a Hispanic radio station sustained “extensive” damage from a fire, officials said.

Flames and smoke were reported at a modular building in the 200 block of Ezzard Street SE in Lawrenceville, spokesman Justin Wilson of Gwinnett Fire & Emergency Services said in a news release.

Firefighters were dispatched about 10:30 a.m. Tuesday to the site of Hispanic radio station La Bonita AM 610 WPLO, Wilson said.

An employee turned on the heating unit after arriving at work, and after a couple of hours, the employee became aware of the fire by activated smoke alarms and the smell of smoke, according to Wilson.

The damage was confined to the far right side of the structure, including the exterior wall, Wilson said.

No injuries were reported.

Investigators said the cause was a malfunctioning heating system attached to an exterior wall.

The effect on the station’s operations is not known.

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