Authorities Friday were seeking an 88-year-old man with early-onset dementia who went missing in the unincorporated Florence-Firestone section of Los Angeles County.

Ruben Aritria Johnson was last seen about 11 p.m. Thursday when he walked away from his home in the 8500 block of Hooper Avenue, according to Deputy Ryan Rouzan of the Sheriff’s Information Bureau.

Johnson is black, 5 feet 3 inches tall and 110 pounds, with brown eyes and short gray hair. He wears glasses and was clad in checkered pajamas when last seen.

Anyone with information regarding Johnson’s whereabouts was urged to call the Missing Persons Detail of the Sheriff’s Department Homicide Bureau at (323) 890-5500.

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— City News Service

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