Updated

A 9-year-old Alaska boy fell into a deep glacier crevasse and state troopers say he likely did not survive.

The Fairbanks Daily News-Miner reported that Shjon Brown of Fairbanks fell into a roughly 200-foot crevasse while riding a snowmobile Saturday near the Arctic Man Classic, a race involving snowmobiles and skiers or snowboarders in the Hoodoo Mountains off the Richardson Highway.

Alaska State Troopers said the boy rode around a small mound and disappeared.

Troopers said he apparently fell into a moulin, which forms when water flowing on glaciers erodes ice.

A climber descended into the hole and spotted the boy's helmet and goggles and part of the snowmobile.

Authorities said the boy may be buried in deep snow.

The newspaper reported that the boy was with his father Saturday riding in the Hoodoo Mountains off the Richardson Highway between Delta Junction and Glennallen.

They were about five miles northwest of the Arctic Man Classic when the father took a break to watch from a hillside.

He told troopers that Shjon, pronounced Shawn, rode around a small mound and did not reappear. His father went to investigate and saw the crevasse.

Personnel from the Army's Black Rapids high angle rescue team have also responded in the recovery effort.

The Associated Press contributed to this report. 

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