(CNN) -- A fallen power line ignited a 1,200-acre wildfire that officials in central Texas were fighting Monday, the Texas Forest Service said.
The fire started Saturday afternoon, about 30 miles south of Austin, and has destroyed 28 homes, 12 businesses, two barns and 20 outbuildings.
The fire was 70 percent contained Monday morning but still threatened at least 200 homes and five businesses, said Misty Wilburn of the Texas Forest Service.
The Texas Forest Service was called in after the local fire department couldn't control the flames, and will stay until the fire is under control, she said.
A crew from Asheville, North Carolina, is helping fight the fire, do line improvement and mop up burning logs and other hot spots.
Officials evacuated homes along three roads and opened three shelters Saturday. On Sunday, one was still open. The others closed after most of the people went to hotels, Wilburn said.
Bastrop County, where the fire was burning, has about 72,000 residents.