A wildfire at Reynolds Creek Wildland in Glacier National Park, Mo. has doubled in size to about 4,000 acres, prompting park officials to issue additional evacuations.

"The fire is moving quickly in dry, heavy timber with extreme spread potential," the park service said in a press release, according to CNN. "Due to windy conditions and extreme fire behavior, today's suppression actions were limited to aerial water drops and some on-the-ground crew work."

The Reynolds Creek Wildland fire, located near Grizzly Point, was first reported at around 3:45 p.m. on Tuesday, according to CBS' Montana affiliate KXLF 4. The fire was first estimated to be somewhere between 800 to 1,000 acres and soon shot up to somewhere between 2,000 and 3,000 acres the following day.

The St. Mary Visitor Center closed at noon on Wednesday so it could be used as a fire staging area.

Officials also evacuated the 72-room Rising Sun Motor Inn, which operated by Glacier National Park Lodges, and a nearby campground with 84 spots. They also evacuated the 148-site St. Mary campground, one of the largest in the park, according to the Associated Press.

The historic Bering Creek Cabin was lost in the blaze. No other structures were reported damaged.

Helena National Forest officials reported that a separate blaze in central Montana has burned about four square miles since Tuesday and threatens homes in a rural area about 15 miles east of Townsend. Two campgrounds and a day-use area were closed.

Fire officials are still unclear about what caused either fire.