(EXPRESS UK) – The US Military Academy wrote on Twitter: "There has been an accident in the vicinity of the Camp Natural Bridge training site.
"Emergency vehicles are responding. Please avoid Route 293."
It added: "One cadet is reported deceased, 20 cadets and two soldiers are wounded that were involved in a Light Medium Tactical Vehicle accident that occurred at approximately 6:45 a.m. off Route 293."
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The injured personnel have since been transferred to a local hospital.
The training site is located around 60 miles north of New York City. U.S. Cadets take part in training drills during their second summer at West Point.