A private plane of the same model departed Westchester County Airport in White Plains, N.Y., shortly after 11:30 a.m., flying north toward Hudson before turning east at about noon, according to the tracking site Flightradar24. Minutes later, the craft disappeared from the site near Copake, a small town bordering Taconic State Park near the Massachusetts border. That plane was registered to a company based outside Boston, according to F.A.A. records. Ms. Salvatore said that, in addition to officers from the sheriff’s department, personnel from the New York State Police and a local fire department responded to the scene. Law enforcement officials received a 911 call about the crash at around noon, she said.

A twin-engine plane with six people on board crashed Saturday in a muddy field in upstate New York, authorities said. The Columbia County Sheriff's Office responded to a 911 report around noon, according to Undersheriff Jacqueline Salvatore, who said the crash was fatal but declined to reveal how many people died. The Federal Aviation Administration said the Mitsubishi MU-2B with six people on the flight was headed to Columbia County Airport near Hudson, but crashed about 30 miles (48 kilometers) away near Copake. “It's in the middle of a field and it's pretty muddy, so accesibility is difficult,” Salvatore said during a news conference near the scene about 50 miles (80 kilometers) south of Albany.

FAA officials confirmed six people were on the plane. Local authorities said the crash was fatal, but did not confirm the number of deaths or the identities of those on board, citing family notifications. The crash reportedly happened in an open field, according to Columbia County authorities. A 911 call was made reporting the incident and witnesses are being interviewed. No preliminary cause has been released.