“He was on a daring mission to reach the summit without supplementary oxygen and was accompanied by a Nepali climber Nawang Sherpa, whose fate is still unknown (was missing with him).

Forty-year-old Joshua Cheruiyot Kirui and his Nepali guide Nawang Sherpa, 44, disappeared on Wednesday during Mr Kirui's bid to become the first African to climb Mt Everest without extra oxygen.

Kirui was trying to become the first African to climb Mt Everest without extra oxygen, accompanied by Nepali climber Nawang Sherpa. Mr Sherpa is still missing. In a statement on Wednesday ...