At least one person died after a twin-engine Mitsubishi MU-2B aircraft crashed in an open field near Copake, New York, US, on Saturday.

According to media reports, six people were present in the plane when the crash occurred.

At least one person was killed, Columbia County Undersheriff Jacqueline Salvatore was quoted as saying by CBS News in a press conference on Saturday afternoon but could not specify how many other passengers survived.

The plane did not hit any structures on the way down, Salvatore told reporters.

Salvator said the crash site is difficult to access due to muddy conditions.

It was unclear as of Saturday what had caused the plane to crash, Salvatore said.

Aviation Mishaps In the US

Three aviation mishaps occurred in the US in the past 72 hours.

Boca Raton

At least three people died after a small plane in which they were travelling crashed in Boca Raton, Florida, USA, on Friday, media reports said.

"The aircraft had apparently some mechanical issues and went down here on Military Trail," Michael LaSalle, assistant fire chief for Boca Fire Rescue, was quoted ABC News as saying.

"Also, there was a car on the ground," LaSalle said.

LaSalle said one man, who was present in the car, suffered non-life-threatening injuries.

The Cessna 310R took off from Boca Raton Airport at 10:15 a.m. and was heading to Tallahassee International Airport, the Federal Aviation Administration told ABC News.

New York Chopper Crash

At least six people, including three children, died after a helicopter, which they had boarded for sightseeing, crashed into the Hudson River in the US city of New York on Thursday.

A major water rescue operation was initiated after the mishap occurred.

The victims included Agustín Escobar, a Siemens executive, and his family, according to a law enforcement official who was quoted by CNN

According to reports, the family arrived in New York City from Spain.