Singer from The Saturdays enters rehab

The Saturdays star Frankie Sandford has checked into a rehab clinic.

The singer – who is in a relationship with Manchester City soccer player Wayne Bridge, 31 - has admitted herself into an unknown facility for “unconfirmed reasons”.

However, Sandford's spokesman is adamant she is not receiving treatment for alcohol or drug related issues.

The 22-year-old pop beauty revealed she hadn't "been very well" in a twitter message to her bandmates Una Healy, Mollie King, Vanessa White and Rochelle Wiseman at the weekend.

She wrote on her page: "Sorry I haven't tweeted in a while. I've not been very well. Miss u @MollieTheSats @unahealy @vanessawhite @RochelleTheSats I'll b back soon x (sic)"

Frankie missed several band commitments in the last week, including a visit to a new Marie Curie Hospice Centre being built in Solihull, West Midlands, England.

The brunette star also skipped a group session with their vocal coach Priscilla Jones.

Frankie's ex-boyfriend McFly guitarist Dougie Poynter checked into The Priory rehabilitation centre following the demise of their two-year relationship earlier this year.