Mariah's sister arrested

Mariah Carey's sister Alison has been arrested for prostitution after she reportedly offered to have sex with an undercover policeman.

A friend told The Mirror: "When Mariah learned of her sister's arrest, she was absolutely devastated.

"She's touring Europe promoting her new single, but finding out that her sister is in trouble once again has made her inconsolable. She can't concentrate on her performances."

A year-and-a-half ago, Alison - who is HIV positive - was bequeathed over half a million pounds in her father's will to help sort her life out but was them arrested in New York as a result of her drug addiction.

After learning of the news, the singer has now been said to have cut the line of help she has been providing her sister.

The friend continued: "Over the years, Mariah has done everything in her power to try and get her sister clean and leading a normal happy life.

"She had an open cheque book where her sister's concerned and has always tried to offer her emotional support as well.

They added: "Mariah is looking for Alsion to want to help herself. She can be there with love and support, but at what point do you not enable someone any longer?"

The sisters became separated when their parents divorced.