Four people were killed in a plane crash in Vermont over the weekend, state police said Monday morning.

Vermont State Police said in a release Monday that they have recovered the bodies of four victims following a plane crash in Addison County in the western part of the state.

State police said their preliminary investigation determined that a four-seat, single-engine Piper aircraft departed Windham Airport in Connecticut around 8:30 a.m. Sudnay for a flight of about two hours to Basin Harbor Airport in Ferrisburgh, Vermont. The privately owned plane landed and the occupants arrived for brunch reservations at Basin Harbor. They left the restaurant shortly after noon and were scheduled to fly back to Connecticut. A witness reported seeing the plane on the runway around 12:15 p.m.

No reports were received indicating an aircraftin distress or that a plane had crashed, state police said. But when the plane failed to return to Connecticut as expected, relatives reported the situation to Connecticut State Police and Middletown, Connecticut, police. Those agencies worked with the Federal Aviation Administration and used cell phone location data to determine that the plane's last known location was near the airstrip in Vermont.

Connecticut police notified Vermont State Police of the situation around 10:20 p.m. Sunday. Troopers responded along with members of the Middlebury Police Department and the Ferrisburgh Fire Department. WIth the assistance of a police drone, investigators were able to locate the wreckage of the aircraft around 12:20 a.m. Monday in a wooded area just to the east of Basin Harbor Airport. First responders confirmed that all four occupants were dead.