Foreign climber missing after avalanche on K2 By Sources say the climber disappeared in an avalanche K2 is set amongst some of the most breathtaking landscapes the world has to offer — and some of the most dangerous SKARDU: A foreign mountaineer has been presumed killed in an avalanche as Pakistani and foreign climbers aim for the K2 summit today. K2 is the second highest peak in the globe and one of the most dangerous. Sources say the climber disappeared into an avalanche after the team's rope broke when they were on their way back from camp three. More details of the accident were not yet available.