Islamabad - Climbers from Pakistan, Spain and Italy have become the first mountaineers to scale Nanga Parbat, Pakistan's "Killer Mountain" and second highest peak after K2, in winter, a spokesperson says.
"Alex Txikon (Spain), Ali Sadpara (Pakistan) and Simone Moro (Italy) have reached the top of Nanga Parbat," said Karrar Haidri, spokesperson of the Alpine Club of Pakistan.
He said a fourth climber, Tamara Lunger of Spain, had been forced to halt the climb some metres beneath the summit.
At 8 125m, Nanga Parbat is the world's ninth highest mountain. It earned its grisly nickname after more than 30 climbers died trying to conquer it before the first successful summit in 1953.
Its fearsome Rupal Face, rising more than 4 000m from base to top, presents one of the most difficult - and tantalising - challenges in climbing.
Twitter was abuzz with the feat as fans hailed and congratulated the climbers - including Moro, one of the world's leading Alpinists, who was among those to return unsuccessful from an attempt to scale Nanga Parbat in 2014.
In 2013 gunmen shot dead nine foreign climbers and their Pakistani guide at the Nanga Parbat base camp - one American with dual Chinese citizenship, two other Chinese, three Ukrainians, two Slovakians, one Lithuanian and one Nepalese. A Pakistani guide was also killed.
Northern Pakistan is a magnet for mountaineers and is home to some of the tallest mountains in the world, including K2 - at 8 611m the world's second highest peak, but often deemed a more challenging climb than the highest, Mount Everest.
Nestled between the western end of the Himalayas, the Hindu Kush mountains and the Karakoram range, Gilgit-Baltistan houses 18 of the world's 50 highest peaks.
It is also home to three of the world's seven longest glaciers outside the polar regions. Hundreds of its mountains have never been climbed.