A mountaineer on Everest has posted a video on YouTube, apparently showing the moment an avalanche hit base camp following the devastating earthquake in Nepal.
The shocking footage appears to show a huge cloud of snow and rock cascading down onto the campsite from the mountain.
German adventurer Jost Kobusch posted the footage to his YouTube channel earlier today.
In the video, some of the climbers comment that "the ground is shaking" before turning around to see the huge moving wall of ice and debris descending onto their tents and engulfing them.
CAUTION: The video contains images and language some viewers may find upsetting.
Four men trapped under as much as 10 foot of rubble after the Nepal earthquake were rescued when NASA technology sensed their heartbeats.
One medical worker told ITV News it was like 'entering your worst nightmare' as they tried to help look after the injured.