Police are appealing for help in finding a 15-year-old girl of Northolt who has been reported missing before.
Rhiain Clarke was last seen at about 6pm on Wednesday October 29 on the South Bank in central London.
She is white, 5ft 1ins and of medium build. She has brown hair which she normally wears in a ponytail.
Rhiain has links to Harrow and is thought to be using public transport. Anyone who sees her is asked to call police on 101.