ANCHORAGE, Alaska — Two U.S. Army soldiers have been injured after encountering a brown bear in a mountainous training area in Anchorage, the military said Friday.

The incident happened Thursday as the soldiers were participating in a “land navigation training event” in Arctic Valley, part of the Joint Base Elmendorf-Richardson’s training area.

The soldiers were receiving medical care as of Friday, a military official told the Anchorage Daily News. Messages sent to base spokespersons were not immediately returned to The Associated Press Friday.

The soldiers’ conditions were not released pending notification of relatives.

Both soldiers used pepper spray on the bear, the official said. Few other details were available about the incident because it was still under investigation.

“The safety and well-being of our personnel is our highest priority,” Lt. Col. Jo Nederhoed, a spokesperson for the U.S. Army 11th Airborne Division, said in an email to the Anchorage Daily News.

“The incident is under investigation, and we are coordinating with local wildlife authorities to ensure the safety of all personnel in the area,” she said.

The base encompasses 100 square miles (259 square kilometers) within the Municipality of Anchorage, where up to 350 black bears and 75 brown bears roam freely.