In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Q: FILE PHOTO: Wind blows snow off the summit at dusk of the world's highest mountain Mount Everest, also known as Qomolangma, in the Tibet Autonomous Region May 5, 2008. REUTERS/David Gray 
  
 KATHMANDU (Reuters) - An American climber on Mount Everest died on Sunday, officials said, the third death on the world’s highest mountain in the past month and raising safety concerns for climbers. 
  
 Roland Yearwood, 50, from Alabama, perished at an altitude of about 8,400 meters (27,500 feet) in an area called “death zone” which is known for thin air, Murari Sharma of the Everest Parivas trekking company that sponsored his climb said. 
  
 “We have confirmation of his death but no other details are known,” Sharma told Reuters in Kathmandu. “It is also unclear if he was on his way up or down from the summit,” he said. 
  
 Yearwood was part of a 16-member team led by American climber Dan Mazur that is climbing the normal Southeast Ridge route from the Nepali side of the mountain. 
  
 Yearwood’s death comes a day after 26-year-old Indian climber Ravi Kumar went missing in the same area during his descent from the peak. 
  
 Kumar got separated from his guide near a place called Balcony on Saturday, Thupden Sherpa of the Arun Treks and Expedition company that sponsored Kumar’s team said in Kathmandu on Sunday. 
  
 “Three sherpa rescuers have been sent to search for Kumar,” Thupden said, adding the climber had been out of contact. 
  
 On April 30, a famed Swiss climber fell to his death near Mount Everest during preparations to climb the world’s highest mountain, while an 85-year-old Nepali man died at the base camp earlier this month while trying to set a record for the oldest climber. 
  
 Nepal has cleared 371 mountaineers to climb Mount Everest during the current season ending this month. ||||| An Alabama doctor was killed Sunday morning while climbing Mount Everest, reports said. 
  
 The Washington Post reported Roland Yearwood died not far from the mountain's peak, and authorities are still trying to determine his cause of death. 
  
 Yearwood was a physician at Georgiana Medical Center in Butler County. He completed hospital training in London and New York City before moving to south Alabama 20 years ago, the hospital's website showed. He was married to another local physician, Amrita, and was a father of two daughters. The website biography showed Yearwood was attempting to climb the tallest summit on the seven continents. 
  
 In 2015, Yearwood was also climbing Mount Everest when a massive earthquake shook Nepal, causing an avalanche. Yearwood and his group survived the incident and descended to basecamp, where a helicopter rescued them. Reports showed 18 people died at basecamp. 
  
 "He is always calm," Amrita Yearwood said about her husband at the time. "He does a lot of sports. He is adventurous. He doesn't get freaked out." 
  
 The Post reported authorities are not sure whether Yearwood was still climbing to the summit or descending when he died. He was somewhere in the mountain's "death zone," above 26,247 feet. |||||
A: 
Sunday marked a deadly day on Mount Everest and an especially tragic one for an American who had weathered danger there before. Alabama doctor Roland Yearwood was one of three to die in separate incidents on the mountain, the Washington Post reports. Yearwood, whose cause of death has not been released, previously survived the 2015 avalanche that took 19 lives on Everest following an earthquake. Reuters quotes a trekking company sponsor who says the 50-year-old died at around 27,500 feet; the sponsor was unaware whether Yearwood had already summitted or was still ascending. AL.com reports the married father of two worked at Georgiana Medical Center, and flags a hospital website bio that noted Yearwood was trying to scale the tallest mountain on each of the seven continents. A Slovak and an Australian climber also died, and an Indian climber is missing after conquering the mountain on Saturday. Ravi Kumar reportedly became so exhausted on his descent that he needed to lie down. Also ill, the climber's guide descended for aid and successfully got to Camp 4, but Kumar has not been located. The Post says about 60 people managed to get to the top on Sunday but quotes guide Tendi Sherpa as saying the day saw a flurry of helicopter evacuations; bad weather and high winds have left climbers with "some little keyholes" during which to get to the top, he says. It's not the only grim news from Everest: A climber has confirmed the 2015 avalanche also claimed the Hillary Step, a famously challenging, nearly vertical part of the trek near the summit.