Authorities are searching for a 13-year-old girl who has been missing since Monday. Officials with the Oxford Division of Police say that Hanna Shamoon has been missing since Sept. 12. Authorities have provided few details on her disappearance, describing her only as a runaway juvenile. It is unclear what part of the Oxford area she was last seen. Anyone with information on her whereabouts is asked to contact the Oxford Police Department at 513-524-5240.