Federal and local authorities say three people were killed on Sunday when a Beechcraft Baron aircraft crashed near the Greenfield-Leyden town line.

According to Greenfield Deputy Police Chief William Gordon, the crash, involving a twin-engine, four-seater plane, was reported at 11:26 a.m. He said there were no survivors.

“We received several calls that a small-engine plane had crashed into the woods in north Greenfield,” Gordon said on Sunday afternoon as emergency personnel gathered near Oak Hill Acres. “With help from the Turners Falls [Municipal] Airport and the Greenfield emergency management drone team, we were able to locate a twin-engine aircraft that had gone down in the woods.”

Rescue crews and investigators with the Massachusetts State Police, Greenfield Police Department, Greenfield Fire Department and the State Fire Marshal’s Office all responded. Gordon advised on Sunday afternoon that representatives from the Federal Aviation Administration and the National Transportation Safety Board were also expected to arrive. Crews were being transported to and from the rural area where the plane crashed using ATVs.

In a statement, the National Transportation Safety Board, which is in charge of the investigation, confirmed that there were three people on board the plane and that it crashed near the Leyden Wildlife Management Area “under unknown circumstances.” An NTSB investigator is expected to arrive on Monday.

“Once on site, the investigator will begin the process of documenting the scene and examining the aircraft,” the statement reads. “The aircraft will then be recovered to a secure facility for further evaluation.”

As part of the investigation process, the NTSB will collect flight tracking data; recordings of any air traffic control communications; aircraft maintenance records; weather forecasts and actual weather and lighting conditions around the time of the crash; the pilot’s license, ratings and flight experience; information on the pilot’s background within 72 hours of the flight to determine if there were any issues that could have affected the pilot’s ability to safely operate a plane; witness statements; electronic devices that could contain information relevant to the investigation; and any available surveillance videos, including from doorbell cameras.

Witnesses to the plane crash or those who have surveillance footage or other information that could be relevant to the investigation are asked to contact the NTSB at witness@ntsb.gov.

One witness, Mark Duprey, said he was standing in his 60-acre field at the intersection of Leyden Road and Barton Road when he watched the plane descend from the sky in a “corkscrew manner.”

“I thought it was someone fooling around doing acrobatics until it began to nosedive,” Duprey recounted.

While watching the small plane, Duprey said he was surprised at how loud it was. However, when the plane began to fall, he said it went silent before ultimately disappearing from sight.