Officials said Eugene Barata was last seen near the intersection of East and Santa Ana streets at 11 p.m. Thursday.
He is described as 5 feet, 5 inches tall, weighing 150 pounds, with brown eyes and gray hair. He was last seen wearing a dark sweater and a striped shirt.
Anyone who sees Barata or knows of his whereabouts is asked to call the Anaheim Police Department at 714-765-1900.
CNS contributed to this report.
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