Rescue efforts underway for missing climbers near avalanche site in Alaska

Two mountain climbers, Eli Michel and Nafiun Awal, are missing in Denali National Park and Preserve
Rescue crews have found their unattended tent and tracks leading to an avalanche zone
Ground searches are limited due to dangerous terrain, so aerial searches are focused on the avalanche runout area
The climbers last communicated Friday morning and were attempting to climb Moose's Tooth, a 10,300-foot mountain
Michel and Awal have been missing since disappearing in the area of a recent avalanche