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ASPEN, Colo. (AP) — Authorities say a 38-year-old Aspen man who was found unconscious and lying partially in the Roaring Fork River.

The Pitkin County Coroner’s Office says Loren M. Ryerson suffered a head injury when he accidentally fell on the riverbank in Aspen on Sunday morning. He died at a Denver-area hospital Monday.

Ryerson, the son of former Aspen Police Chief Loren Ryerson, was treated after a homeowner saw him lying on the riverbank near a downtown park and called authorities.

The Aspen Times reports Ryerson graduated from Aspen High School and worked at different area businesses after studying at the University of Arizona.