Dallas firefighters are working to extinguish a blaze at an apartment complex near White Rock Lake.

Dallas Fire-Rescue responded at 11:15 a.m. Friday to the Oaks White Rock apartments, located at 9000 Poppy Drive. 

There were reports of smoke coming from the roof of a three-story apartment building. Fire crews located the blaze in the attic and put it out after an hour, Dallas Fire-Rescue spokesman Jason Evans said.  

Investigators said the fire was accidental. It started when a worker using a heat gun inadvertently ignited combustible materials near the roof.

No injuries were reported, and interior damage was minimal. Four units had varying degrees of smoke and water damage, Evans said. 

Watch the video from ABC affiliate, WFAA:

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