ANCHORAGE, Alaska (AP) — A man riding a snowmobile died when he hit by an avalanche outside the Aleutian Islands community of Unalaska.

Trey Henning, 21, died early Tuesday evening, KTUU-television reported.

The Unalaska Public Safety Dispatch Center at around 5:30 p.m. received a call for assistance.

The caller said an avalanche off Overland Road in the Unalaska Valley had buried a man on a snowmobile.

City firefighters, paramedics, police and volunteers responded and found Henning. They attempted CPR and rushed Henning to the Unalaska Clinic, where he was pronounced dead.

Unalaska is home to Dutch Harbor, a major U.S. fishing port.