Last updated at 16:09

The dangers of Mount Everest

To enjoy the CBBC Newsround website at its best you will need to have JavaScript turned on.

Climbing to the top of Mount Everest is one of the toughest challenges known to man.

Many make it, but some sadly don't, and in the past week alone, 4 climbers have died trying to reach the top.

For mountaineers it's a really popular peak, but for one of Britiain's best-known climbers that's one reason that makes it so dangerous.

Ore looks into what makes Everest such a tough challenge.