ISLAND PARK, Idaho — A 2-year-old girl was killed Friday night and two other girls remain in the hospital after they were buried by snow and ice that slid off a roof at a resort.

Fremont County Sheriff Len Humphries said Sunday that two 7-year-old girls — the sister and cousin of the younger child — were in fair condition at a hospital in Idaho Falls as of Saturday evening.

He says the girls were buried when several feet of snow and ice fell off a cabin at Mack’s Inn Resort, a popular destination about 20 miles west of West Yellowstone, Mont.

The sheriff says one of the fathers saw the snow fall and immediately started digging. He and others were able to quickly locate the older girls, but it took some time to find the younger child.