Six skiers were rescued, but nine remained missing after an avalanche Tuesday near the town of Truckee, California, authorities said.

Axar.az informs, citing NBC news, the avalanche happened in the area of Castle Peak, a popular backcountry ski destination northwest of Lake Tahoe, the Nevada County Sheriff’s Office said in a news release.

"Two of the six skiers have been transported to a hospital for treatment. The search is ongoing, pending weather conditions," Ashley Quadros, a Nevada County Sheriff’s Office spokeswoman, said in a news release at 10:40 p.m. local time.

The sheriff's office initially said the group caught up in the slide included 16 people but clarified Tuesday night that it was a group of 15.