Two skiers were killed, five were rescued and at least one more was unaccounted for after an avalanche Tuesday at a ski resort in northern Idaho, according to the Shoshone County Sheriff’s Office and the Silver Mountain Resort.

“Our deepest condolences go out to all the family and friends affected by this tragic event,” the sheriff’s office said in a statement early Wednesday.

The snow slide happened around 11 a.m. on Tuesday near Wardner Peak, a 6,200-foot mountain that is part of the Silver Mountain Resort in Kellogg, Idaho, the ski area said on its Facebook page.

Mac Pooler, the longtime mayor of Kellogg, said snowfall in the area had been below average this winter, but the resort had received 16 to 18 inches of new snow overnight.