One person was killed after a two-seater aircraft crashed in the Oceano Dunes State Vehicular Recreation Area on Wednesday afternoon.

The male pilot of a single-engine, two-seat Luscombe 8A was pronounced dead at the scene soon after the 4:30 p.m. crash, said Oceano Dunes Supervising Ranger Brent Marshall.

The pilot’s identity was not released Wednesday, pending notification of kin.

No one else was in the aircraft when it went down near post 14, a Dunes marker.

The aircraft was leaking some fuel after the crash, and county environmental health officials responded to the scene.

The cause of the crash was unknown.

The Federal Aviation Administration and National Transportation Safety Board will investigate the accident, with the NTSB acting as the lead investigative agency. Determining a cause for the accident could take months, according to Ian Gregor, FAA spokesman.