WEST GLACIER, Mont. (AP) — A section of a popular Glacier National Park trail was closed Thursday after a man was attacked by a bear and injured, park officials said.

Rangers are still trying to determine if the attack involved a grizzly bear or a black bear.

The 35-year-old man sustained non-life-threatening injuries Thursday morning when his hiking party encountered the bear near the Grinnell Glacier Overlook trailhead on the Highline Trail.

The man hiked over a mile (1.6 kilometers) to Granite Park Chalet with assistance and was flown to a spot where he could be taken by ambulance to a hospital in Whitefish.

The trail from Haystack Butte to the Granite Park Chalet will remain closed until further notice, officials said.

Park officials did not release any further information, including the man’s name or the extent of his injuries.