In 1937, Karl Wien led another expedition to the mountain, following the same route as Merkl's expeditions had done. Progress was made, but more slowly than before due to heavy snowfall. Some time around the 14th of June seven Germans and nine Sherpas, almost the entire team, were at Camp IV below Rakhiot Peak when it was overwhelmed by an avalanche. All sixteen men died instantly in what remains the worst single disaster to occur on an8000 m peak.