Russia 6 people were killed from a height of 4,200 m and 6 people may still be trapped when climbing the volcano Klyuchevskaya Sopka in the Far East.

Group of 12 people, including two guides, started climbing a high volcano of 4,754 m on August 30 but was in trouble on September 3, when some people in the group fell from a height of 4,200 m and killed

The rescue force today tries to reach them but must turn around because the strong wind makes the helicopter unable to land.

Klyuchevskaya Sopka volcano from afar.

The helicopter intends to land at an altitude of 3,300 m but because the wind jerks at a speed of 30 m/s, they could not be done, the spokesman said.

Tatyana Yukhmanova, representative of the local authorities, said rescuers will try to reach the group of climbers again tomorrow if the weather conditions allow.

Klyuchevskaya Sopka is the highest volcano out of more than 160 volcanoes covered with snow on Russia's Kamchatka peninsula.

The rescue agency warned the mountain, made up of volcanic rock mounds mixed with snow and ice, especially dangerous for climbers due to its height and the risk of lava eruption.