All 4 individuals on board a U.S. army plane have been killed when it crashed in a distant a part of northern Norway on Friday throughout a NATO-led army coaching train, native police stated on Saturday.

“So far as the police are conscious, all 4 are of American nationality,” police stated. Prime Minister Jonas Gahr Stoere tweeted condolences over what he stated was the dying of 4 People.

The MV-22B Osprey plane belonging to the U.S. Marine Corps was participating in an train referred to as Chilly Response.

Rescue companies reached the crash website by land early on Saturday after helicopters have been unable to land resulting from poor climate situations. Gale-force winds have been blowing, heavy rains have been falling, and there was a threat of avalanches, based on native climate forecasts.

“Police reached the crash website at round 0130 CET (0030 GMT). It’s regrettably confirmed that every one 4 on board the aircraft have perished,” Ivar Bo Nilsson, head of the operation for Nordland police, stated in a press release.

Police have been investigating the reason for the crash though their work was halted due to the climate situations. The work was set to renew as soon as the climate improves.

Some 30,000 troops from 27 nations are concerned in Chilly Response, an train designed to organize NATO member nations for the defence of Norway.