Tributes are being paid to "the world's greatest climber" who's died on Mount Everest.
41 year old Ueli Steck died in a fall as he was preparing to reach the world's highest peak without oxygen, for a third time.
@UeliSteck works out at #Everest Base Camp#Everest2017
With Tenji Sherpa he will attempt a new route Everest -Lhotse traverse w/o supp O2 pic.twitter.com/TREsMTbkor— Dream Wanderlust (@DreamWanderlust) April 25, 2017
Ueli's last Facebook post talked about his preparations for the dangerous climb.
Known to fans as "the Swiss machine", Steck was a superstar of the sport.
Ueli Steck/Tenjing Sharp en route to the summit of Everest @ClTCNepal flag in their bags. Visit our website https://t.co/tEIObVGdGb. pic.twitter.com/xIJ5VYwJZl
— CITC Nepal (@ClTCNepal) April 28, 2017
Steck climbed all 82 of the highest peaks in the Alps in just two months in 2015.
He was known for his speed-climbing technique which often saw him running up mountainsides wearing crampons.
He also set a record for scaling the notorious north face of the Eiger mountain in less than three hours.
