Police are appealing for help to find 13-year-old Filsen Mohammed, who has been missing since Thursday, 23 August.
Filsan is originally from Southwark but is currently staying at a care home in Nottinghamshire.
However following a visit to London she did not arrive for an appointment to see relatives and was reported missing.
Filsan is likely to be in the Southwark area.
She may be wearing a red jacket with a black top, black jeans, white trainers, small earrings, and her hair tied up in a ball.
Officers ask anyone who sees her to call 101 quoting 18MIS034046