A Gilgit-Baltistan climber of mountains, Pakistan, reached the top of Mount Everest without using oxygen.
Sirbaz Ali is the second Pakistani climber to reach the top of Mount Everest without using oxygen. He did this after Sajid Sadpara did it for the first time. There are 11 peaks that have been climbed without oxygen.
He is the only person in Pakistan to have climbed 11 peaks without oxygen. In total, he has climbed 13 peaks that are over 8,000 metres high.
