Central Oregon firefighters are assisting U.S. Forest Service crews after a prescribed burn escaped its perimeter in the Willamette National Forest.
The fire was continuing to grow Thursday north of the McKenzie River Ranger Station near Highway 126.
The total burn area has surpassed 120 acres and is located on a steep slope north of McKenzie Bridge.
Ground crews, including nearly 40 firefighters, are making progress by building control lines around the fire.
Two firefighting helicopters were also called in.