article_snippet.sent: Helicopters brought stranded climbers off the mountain Monday amid growing concern for the groups stuck around 20,000 feet (6,100 meters) high in Camps 1 and 2.
article_snippet.sent: Witnesses said three helicopters rescued climbers and Sherpas from Camp 1, taking two people down at a time.
article_snippet.sent: The window for helicopter rescue was expected to be between 9 a.m. and noon Monday.
article_snippet.sent: Jim Davidson, a climber on Everest, tweeted that the evacuations were going well.
highlights_snippet.sent: Helicopter rescues are underway to retrieve climbers stranded on Mount Everest .