UPDATE: Galesburg Police said Friday that Harper has been located and is safe.
The Galesburg Police Department needs your help locating 22-year-old Joseph Harper.
Police say he is mentally disabled and was last seen at 6 a.m. Wednesday in the 800 block of North St.
He was wearing a gray sweatshirt, gray sweatpants, blue shoes and a red and white winter jacket.
Harper often travels by foot and sometimes takes the city bus.