Prosecutors are investigating Italian Prime Minister, Silvio Berlusconi, over allegations that he paid to have sex with a teenage nightclub dancer.

The girl, known by her stage name Ruby, said she attended parties at Mr Berlusconi's villa when she was 17, and received money - but denied they had sex.

Mr Berlusconi has admitted intervening to have her released when she had been arrested on suspicion of theft. But he has denied doing anything wrong.

From Rome, Duncan Kennedy reports.