ROME - Italian prosecutors are looking into a newspaper report alleging that two Italians offered cash to a Moroccan official to change the birth certificate of the teenage girl at the centre of Premier Silvio Berlusconi's prostitution scandal.

Berlusconi faces trial on charges he paid for sex with a Moroccan girl nicknamed Ruby, who at the time was a minor.

Il Fatto Quotidiano, a leftist newspaper opposed to Berlusconi, said two Italian men travelled to Morocco in February and sought to bribe a registry office employee into changing Ruby's year of birth from 1992 to 1990.

Berlusconi has denied wrongdoing. His lawyers have filed a complaint to Rome prosecutors, saying they feared a setup.

ANSA reported the prosecutors opened the investigation Monday.