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Record-breaking summit of K2 dogged by allegations that Western climbers left Pakistani man to die
By Zarar Khan & Kirsten Grieshaber
Top mountaineers were 'more interested in setting records than saving life of porter who died on K2 as climber
Norwegian mountaineer Kristin Harila denies group stepped over dying porter during world record K2 climb
By James Robinson
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K2: Climbers deny walking by dying guide in bid to break record
By Bethany Bell & Mattea Bubalo