The 14-year-old was reported missing on Tuesday, January 18 and officers are seeking to locate her.
She is described as slim with long brown hair, 5’7”, and was last seen wearing a cream-coloured jacket and black Nike trainers.
Officers believe she has links to the Sunderland, Newcastle and Durham areas.
Anyone who sees her or who has information about her whereabouts is asked to report it to Sussex Police online or call 101 and quote serial 1254 of 18/01.
