Aspen police Sgt. Bill Linn said the four-star general told him it appeared to be a combination of altitude sickness and something he ate. "He is conscious and in very good spirits," Linn said shortly before Powell was released from Aspen Valley Hospital at 1:45 a.m. Linn said Powell asked him to speak with reporters.
Powell's Alexandria, Virginia-based secretary, Peggy Cifrino, did not immediately return a phone call left at her office.
A nursing supervisor at the hospital, where former Enron CEO Kenneth Lay was rushed to and pronounced dead early Wednesday, refused to comment.