Czech Mountaineering Federation head Zdenek Hruby has died while climbing Gasherbrum I, an 8,068-metre (26,469-foot) peak in the northern Pakistani Karakoram range, the federation said on its website today.
No further details were given as to the cause of death.
Hruby, 57, and his long-time climbing partner Marek Holecek, 38, were attempting the first ascent of the south-west face of the mountain.
Gasherbrum I, also known as Hidden Peak, is the world's eleventh highest.
