Park officials said a Canadian climber fell nearly 1,000 feet (305 meters) while climbing Denali, Alaska, and was in critical condition.

A statement from Denali National Park and Preserve stated that the climber was 31-year-old Adam Rawski from Burnaby, British Columbia. According to the statement, on Monday night, climbers saw an uncultivated climber falling nearly 1,000 feet (305 meters) from Denali Pass (about 18,200 feet) at 17,200 feet (5,2439 meters) high camp in Denali. (5,547 meters).

The statement said that the guide at the high camp responded that a park helicopter that was previously conducting a glacier monitoring survey was able to mobilize and evacuate, and arrived at the scene within half an hour after receiving the initial report.

The statement stated that Roski was “alive but unresponsive due to multiple traumas.” The statement said that the climber was taken to Anchorage Hospital in critical condition.

Denali is the highest mountain in North America, 20,310 feet (6,190 meters) above sea level.