Kyle Dempster and Scott Adamson began their ascent of the 7,285-metre (23,900-foot) Ogre-II peak off the Choktoi Glacier in the Gilgit-Baltistan region of Pakistan on Sunday August 21, but went missing the next day and have not been seen since.
“Two helicopters belonging to military aviation flew over the mountains Saturday morning but there was no sign of the climbers,” Karrar Haidri, a spokesman for the Alpine Club of Pakistan said.
“The search goes on,” he added.
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The helicopter search has been delayed for days because of the adverse weather conditions.
Authorities said that a team of local high-altitude rescuers has been searching for the missing climbers for almost a week but bad weather has prevented them from ascending the peak.
Pakistan has long been a draw for foreign climbers lured by some of the most spectacular mountains on Earth, including the savage K2, the world’s second highest peak.