A Dutch man and an Australian woman both died earlier in the weekend as a result of altitude sickness.
Some 30 climbers have suffered frostbite or become seriously ill on Everest in recent days, as the spring climbing season comes to a close.
In 2014, 16 guides were killed in an avalanche, leading to protests that prematurely ended the season, then an earthquake in Nepal last year killed at least 18 people on the mountain and closed climbing routes.
T have been successful ascents from the Chinese side too, including Lhakpa Sherpa, a Nepalese woman living in the US, who reached the peak from Tibet on Friday, breaking her own record for the most Everest climbs by a woman.
Dutch climber Eric Ary Arnold died on Friday after reaching the summit, then on Saturday, 34-year-old Australian woman Maria Strydom, born in South Africa, died while descending.
Ms Strydom, a vegan, had been attempting to climb Everest with her husband – who has survived – in an effort to prove that vegans could “Do anything”.
Speaking to the BBC, Gyanendra Shrestha, a Nepalese official at Everest Base Camp, said snow blindness, altitude sickness and fatigue were very common health issues at high altitudes, although most people recover once they descend the mountain.