Sirbaz Khan makes history by climbing Mount Everest without oxygen

Pakistan’s renowned mountaineer Sirbaz Khan has made history as he climbed the world’s highest peak Mount Everest without the support of supplemental oxygen on Tuesday.

Khan reached the top of the 8,849-metre peak today at 12:30 PST.

The announcement was made by record-holder Pakistani mountaineer Saad Munawar on his Instagram account.

"Big News: Pride of Pakistan, Sirbaz Khan, has summited Mt Everest without using supplementary oxygen," he wrote in the caption.

However, the celebrations will kick start after Sirbaz reaches safely to the base camp. Sirbaz had previously summitted the 8849-metre peak using bottled oxygen.

He is the second Pakistani to climb the world’s highest peak without the aid of supplemental oxygen.

In May last year, ace mountaineer Sajid Sadpara, son of legendary climber Ali Sadpara, became the first alpinist to climb Mount Everest.