By: KIRO 7 News Staff

MARYSVILLE, Wash. – The pilot of single-engine Cessna 305 died when his plane crashed in a large field in Marysville.

Marysville police and firefighters responded just before 7 p.m. Wednesday at 1601 51st Ave. NE.

Local authorities said only the pilot was aboard the plane.

The plane crashed under unknown circumstances, officials said.

Officials said the Federal Aviation Administration and the National Transportation Safety Board are investigating.

Officials with the NTSB said the plane was an experimental, amateur-built aircraft.