Updated

A rescue mission has been called off for two experienced mountain climbers that attempted to climb Pakistan’s Nanga Parbat, also known as “Killer Mountain,” after an avalanche last month.

Alex Gavan, a Romanian climber, had lost radio contact with climbers Alberto Zerain and Mariano Galvan, near the Mazeno ridge of the mountain. He then realized they had run out of food and prompted the search.

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Image shows the area where Alberto Zerain and Mariano Galvan's last tracks were believed to have been seen while climbing Nanga Parbat, Pakistan July 1, 2017. (Alex Gavan/Handout via REUTERS)

“In the photos you see the tracks of the climbers…suddenly end at the avalanche fracture line and do not appear anywhere after the fracture line," Gavan said.

The two climbers chose a daring route to ascend the 26,660 feet tall Nanga Parbat via the eight-mile Mazeno Ridge, which had been scaled successfully only once before.

“Just where the avalanche debris is was their last GPS location,” Gavan told Reuters.

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A drawing of details of the disaster and terrain made by the photographer at the Base Camp at Nanga Parbat, Pakistan June 28, 2017. (Alex Gavan/Handout via REUTERS)

Rescue efforts were called off when the final helicopter flew over the ridge on July 1. Photographic evidence shows that there had been an avalanche within the preceding eight days.

“The team will search on the Mazeno Ridge of the Nanga Parbat, where the missing climbers are believed to be buried under an avalanche,” Karakorum Expeditions spokesman Mehboob Ali said.