BELLINGHAM, Wash. – One person was killed when a small plane crashed in Whatcom County Monday night, according to the Sheriff’s office.

Crews received reports of an aircraft down around 10 p.m. in an area about five miles south of Bellingham International Airport.

The Sheriff’s office said the plane had lost radio contact with air traffic control.

A U.S. Customs and Border Patrol helicopter found the wreckage in the Larabee State Park area near Chuckanut Mountain, using a signal from the plane’s last known location and direction of travel.

When firefighters arrived, they said there were trees down, but no fire.

One person was confirmed dead.

The Sheriff’s office said it’s believed the pilot was the only person on board, but is searching the area to make sure no one else was involved in the crash.

The Sheriff’s office said according to the plane’s owner, the single engine, fixed-wing plane was being flown from Snohomish County to Bellingham for maintenance.

The Whatcom County Sheriff’s Office is still investigating, and the NTSB has been notified and is in route.

Investigators are still working to confirm the pilot’s identity and notify next of kin.

No word yet on what may have caused the crash.