PORTLAND, Ore. — A firefighter has died after sustaining an injury while fighting the Austin Fire burning in a remote area of the Mount Hood National Forest, the U.S. Forest Service said Friday.

The firefighter, whose name has not been released, was injured on Wednesday while working on suppression efforts. They received medical aid and were taken to a hospital where they died, according to the agency, KGW reported.

"We extend our sincere condolences to the fallen firefighter’s family, friends, and colleagues. The U.S. Forest Service is working in coordination with the fallen firefighter’s family and company they were working with at the time," the Forest Service said.

The agency said there will be an investigation into the firefighter's death.

The Austin Fire, believed to be human-caused, has burned nearly 1,3000 acres since it began in early August and was 36% contained as of Friday. Some closures and evacuations remain in effect for surrounding areas, including a Level 3 "Go Now" notice.

Senator Ron Wyden said in a statement, “My deepest condolences to the loved ones and co-workers of this firefighter who lost their life battling this blaze in the Mount Hood National Forest."

"Today’s tragic news sadly spotlights yet again the life-and-death dangers that firefighters take every day on their job, running toward risk - never away from it,” the senator said.

The firefighter's death is the second in Oregon this year amid a summer in which a record of more than 2.5 million acres burned.

Early last month, Jacob Ensign, 47, was killed while working on a bulldozer to help fight the Wrights Spring Fire in Klamath County when the fast-moving blaze cut off his escape route.

That fire has burned more than 55,000 acres and as of this week is 98% contained.