South Korean, Bangladeshi climber die on Mt Everest

A climber from South Korea and another from Bangladesh have died while descending from Mt Everest after an ascent.

Sung Ho-Seo, 34, of South Korea, was attempting the climb without supplementary oxygen and died on his way down the mountain while Mohammed Hossain, 35, from Bangladesh, died in his tent a few hours after successfully climbing the summit, AFP reported.

"The exact cause of death is unknown, but altitude played a part," tourism official Gyanendra Shrestha told the news agency, adding that the bodies would not be recovered until after the summit season ended so as not to interrupt other climbers.

Both men perished in the "death zone" - above 8,000 metres - a difficult terrain with thin air.

Five other climbers - three Sherpas, one Taiwanese and a Russian - have died on the 8,848-metre (29,029-foot) mountain this season.