PHOTOS: At least 17 dead in Mount Everest avalanche; search for survivors

APRIL 25: This photo shows nightfall after an avalanche triggered by a massive earthquake swept across Everest Base Camp, Nepal on Saturday. The photographer and his team survived the avalanche. (Azim Afif via AP)

APRIL 25: This photo shows the scene after an avalanche triggered by a massive earthquake swept across Everest Base Camp. (Azim Afif via AP)

APRIL 25: The scene after an avalanche triggered by a massive earthquake swept across Everest Base Camp, Nepal. (Azim Afif via AP)

APRIL 25: Climbers and guides carry an injured after an avalanche struck Everest Base Camp in Nepal. An avalanche triggered by a massive earthquake in Nepal smashed into a base camp between the Khumbu Icefall, a notoriously treacherous rugged area of collapsed ice and snow, and the base camp where most climbing expeditions are, said Ang Tshering of the Nepal Mountaineering Association. (AP Photo/Pasang Dawa Sherpa)

APRIL 25: The scene after an avalanche triggered by a massive earthquake swept across Everest Base Camp. (Azim Afif via AP)

FILE 2005: Mount Everest from an aerial view taken over Nepal. Senior mountaineering guide, Ang Tshering, said an avalanche swept the face of Mt. Everest after the massive earthquake, Saturday April 25, 2015 while government officials say at least 30 people have been injured on the mountain. (AP)