KATHMANDU: Three climbers died on Everest over the weekend and another is missing, officials confirmed Monday, in one of the deadliest episodes on the peak since an avalanche swept through base camp killing 18 two years ago.
More than a dozen climbers have also been rescued from the 8,848 metre (29,030 foot) mountain in the last three days after running into difficulties while attempting to summit, helicopter rescue operators told AFP.
The weekend deaths appear to be related to altitude sickness and bring the toll to five during a season that has been hit by unpredictable weather, strong winds and unusually cold temperatures.
The weather calmed over the weekend, opening a narrow window for climbers to make a bid for the top.
Despite the large numbers crowding towards the peak, there have been no reports of long queues delaying climbers.
More than a hundred climbers are expected to attempt to summit from Nepal´s south side on Monday before the weather changes, bringing strong winds, according to forecasts.