Feb 13, 2018

Russell Gubele of Mountain Wave Search and Rescue said it's unclear how far the climber fell, with reports varying from several hundred feet to 1,000 feet. Video from a helicopter on the scene showed people performing CPR on the injured climber, who's believed to be a man in his 30s, CBS affiliate KOIN-TV reports . The stranded climbers were on the Hogsback area near the summit of the 11,240-foot mountain about 60 miles east of Portland. "I don't know that any advice has been given (to them) yet," Gubele said. "We have to get some folks on the scene to do some assessing." Mount Hood is a popular climbing site that has seen dozens of accidents and fatalities over the years. Thousands climb it each year, mostly in the spring. The peak is notorious for loose ice and rocks in warm weather. The sun has been out this week, and the temperature was well above freezing Tuesday at Timberline Lodge. The temperature was right around freezing at the spot where the climber fell, Gubele said. "This is the kind of weather conditions and the time of year where you often get falling ice, falling rocks and problems," Gubele said. "It sounds like the conditions up there are very unsafe right now." The Clackamas County Sheriff's Office coordinated the search that included several rescue groups and an Oregon Army National Guard helicopter. This is a developing story. Please check back for latest updates. © 2018 CBS Interactive Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.