Up to 11 people are feared dead after a US Army Black Hawk helicopter crashed on a routine training mission at Fort Drum in upstate New York last night.
Two survivors were taken to Samaritan Medical Center in nearby Watertown, New York, according to a US Army spokesman, who said rescue operations were continuing.
The crash occurred in a training area on Fort Drum property, said military authorities, who sent several search and rescue teams out shortly after the aircraft went missing.
The crash occurred in a remote area blanketed with snow.