Authorities are confirming the death of a skier who triggered an avalanche alongside his climbing partner, a snowboarder, while descending a slope in Denali National Park and Preserve in Alaska.

The skier and his climbing partner, who was snowboarding, were caught as they descended a slope on the West Buttress Route, park officials said.

Authorities say a skier died after being caught in an avalanche on North America’s tallest peak, Mount McKinley in Alaska.