A search was underway on Mount Hood on Tuesday for an Arizona man who was unaccounted for after injuring his leg while hiking on the Timberline Trail.

David Yaghmourian, 30, of Phoenix was on the trail with another person when he hurt his leg Monday, according to the Clackamas County Sheriff's Office. He stopped to rest while they were heading back to the Timberline Lodge.

The hiker he was with made it back alone and waited for Yaghmourian to arrive, but the Arizona man never appeared, the sheriff's office said. Authorities began searching for him Monday night.

Yaghmourian was last seen at the eastern junction of the Timberline Trail at the Pacific Crest Trail, the sheriff's office said. He is described as 5-foot-10, about 150 pounds with black hair and brown eyes. He was wearing a tan baseball cap, a black Columbia Sportswear jacket, tan pants, a large black backpack with red trim and a yellow towel on top.

Yaghmourian graduated in 2014 from Arizona State University, where he now works as a research analyst assistant.

The sheriff's office asks anyone who sees or comes into contact with Yaghmourian to call the agency's non-emergency line at 503-655-8211.

-- Everton Bailey Jr.

ebailey@oregonian.com

503-221-8343; @EvertonBailey