(KLZA)--Initial notes from the Federal Aviation Administration on Tuesday, November, 3, confirm a pilot and one passenger were killed when a Piper PA-28 aircraft crashed into a ditch under unknown circumstances.

According to the Fremont County Sheriff’s Office, emergency crews were called around 7:30 p.m. to an area along Bluff Road north of Hamburg. First responders found both victims at the crash site. Both were pronounced dead at the scene.

The sheriff’s office said the NTSB is working with local authorities and no further information about the cause is available.