Updated May 24, 2019 19:39 EDT
Two other climbers died Friday on Mount Everest and became the eighth and ninth to die there. That's more than the whole last year.
The deaths occur in the midst of massive crowds near the summit of the highest peak in the world.
It's a human jam on the summit of Mount Everest, with hundreds of climbers waiting for hours to stand at the top of the world. Lukas Furtenbach has reached the top on Thursday, he is still climbing down.
"It was very busy," said Furtenbach. "We're here every year, and I've never seen such a year, and we lost about three hours waiting at the most difficult part of the rock."
Climbers call the area over 26,000 feet the "death zone" because the air is so thin. Most need extra oxygen.
"And that's very dangerous, if you run out of oxygen, you can die within a few hours," said Furtenbach.
At least nine climbers have died on Everest so far this season. more than anything from last year. Almost all died as a result of the congestion on the summit.
Experienced Everest climbers said that this year is particularly busy as the weather conditions were so clear for only five days that a summit could be reached.
"Everyone shares weather forecasts," said Alan Arnette. "And in the end everyone goes to the summit at the same time."
Arnette climbed to Everest in 201
. "They are getting weaker by the minute, so the crowds undoubtedly contribute to those deaths."
Most bodies will remain on Mount Everest – a solemn reminder for future climbers.
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