At least 10 people, including nine foreign tourists and a guide, were killed after a gunman stormed a hotel at a mountain base camp.
The victims in the assault at the base camp of Nanga Parbat in Pakistan are reported to include a number of Ukrainians and Chinese. One Pakistani also died.
Up to 20 attackers stormed the hotel at the base camp in the foothills of the mountain.
It is the first such attack on tourists in the region. The Pakistani Taliban has told the BBC it was responsible.
A spokesman for Tehrik-e-Taliban said the attack was in retaliation for the killing of its second-in-command, Waliur Rehman, who died in a suspected US drone strike in May.
Officials in the Diamir district of Gilgit-Baltistan say the area where the gunmen struck is remote, with it taking more than 18 hours to reach the base camp of Nanga Parbat, added the BBC’s Orla Guerin.
Helicopters had been sent to evacuate the remaining climbers in the region – believed to number between 20 and 25.
The Foreign Office updated the terrorist section of its Pakistan travel advice to say: "terrorists targeted, attacked and killed nine foreign tourists and Pakistani nationals at the Nanaga Parbat base camp area, Gilgit-Baltistan."
Nanga Parbat, part of the Himalayan Range and the world’s ninth highest mountain, is popular with trekkers and mountaineers, especially during June and July.
