MOUNT RAINIER NATIONAL PARK, Wash. (AP) - The Pierce County Medical Examiner's Office has identified a climber who died in a rock fall on Mount Rainier Wednesday as 45-year-old Arleigh William Dean of Alaska.

Mount Rainier National Park officials say a climber called 911 Wednesday evening reporting that six climbers were caught in a rock fall at their campsite on the Liberty Ridge route.

Park rangers responded by helicopter, taking Dean's body to the medical examiner's office.

The most seriously injured climber was taken to Seattle's Harborview Medical Center, where a spokeswoman said Friday he remained in serious condition.

Officials say another climber with lesser injuries was treated at another hospital and released. The others were uninjured and were flown out later Thursday.

Copyright 2019 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.