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In this sad incident, experienced climbers say they are seeing for the first time and it is difficult to understand how they can do this.

Baekun has heard stories of veteran climbers.

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It is 3,500 meters above sea level where there was base camp of Korea expedition party.

The grasslands of the alpine area appear and the eyes are almost invisible.

Snow storms and landslides were estimated to be direct causes early in the accident, but the experts who watched the video are less likely to see this possibility.

The locals say that there was no snow, but super-strong winds were raging.

It is said that a tree with such strength is enough to be picked up from the roots or it can not be imagined.

One of the nine expeditionary expeditions was found in a canyon hundreds of meters away from the rest of the base camp.

Tents and mountain equipment were scattered all over the place.

Veteran climbers, however, say it is not believed to be the first time they have heard an accident that has blown up to the base camp where gusts are installed in safe areas.

[Huh Young-ho / climber: All Sherpa (local guide) and our Korean members flew in the wind and died in a valley 500m away? This is something that God does not understand well before putting it on.]

Some climbers are raising the possibility that the rainwater is piled upstream in the valley and covered the base camp with ice.

The body was all settled as the bad weather at the time of the accident was lifted, but the cause of the disaster was not solved easily.

(Video coverage: Cho, Choon Dong, image editing: Park Ki-deok)