Credit: Susan Barnett

LAKE WHITNEY (CBSDFW.COM) – A Thursday afternoon grass fire destroyed seven buildings and burned 300 acres in Hill County.

READ MORE: American Airlines Donates Miles To Provide Flights For Afghan Refugees

The fire started around 4:00 p.m Thursday near Lake Whitney.  What started as a grass fire quickly spread to nearby homes and threatened a power plant near the lake.

Hundreds of volunteer firefighters, many who have assisted with other fires across the region, helped fight the fire, which as of 10:00p.m. is listed as 80 percent contained.

Many residents are still being held to an evacuation order. A shelter for residents has been set up at Prairie Valley Church.

READ MORE: Fort Worth Police Investigating After Man Shot At 7-Eleven Store

There were no reports of any injures to homeowners.  One female firefighter had to be treated for smoke inhalation.

As of 10:00 p.m. power remains out for the nearby town of Whitney.  School for Friday was cancelled by the Whitney ISD because of the power outage and fire.

MORE NEWS: Severe Weather Threat For North Texas Tuesday Night, Early Wednesday Morning

The cause of the fire is still under investigation.