PORTLAND, Ore. (KOIN) — A plane crash site near Mount Jefferson has been found by a U.S. Coast Guard helicopter crew, and one person was found dead, officials said Friday afternoon.

Officials with USCG said the crew found the crash site with one person deceased aboard the plane.

The missing plane search efforts were announced Friday morning by USCG, saying that a plane with one person on board was supposed to land but never arrived.

The plane’s last known location was flying near Mount Jefferson, where nearby hikers reported hearing “sounds similar to a plane crash.”

“Our sincerest condolences go out to the friends and family of the individual during this difficult time,” officials said in a tweet.

This is a developing story.