Officers are hoping the public can help them in their search for Dina Thomas.
Fifteen year-old Dina went missing from temporary accommodation in Port Talbot on Thursday (September 29), and has not been seen since.
She has close links with Rhondda, where officers believe she may now be located.
Dina is described as being 5ft3 with a medium build, brown eyes, and black bobbed hair, wearing a hair piece which takes her hair beyond shoulder length.
At the time she went missing, she was wearing turquoise top, denim shorts, and sandals.
Anyone with information is urged to contact South Wales Police via 101 or call Crimestoppers anonymously on 0800 555 111.
