MILAN — Italian prosecutors demanded Wednesday that Premier Silvio Berlusconi be put on immediate trial over accusations he paid for sex with a 17-year-old Moroccan girl and used his influence to try to cover it up. The Italian leader blasted the “disgusting” action, saying it aimed to topple his government.

The prosecutors are seeking a trial now because they believe there is overwhelming evidence against the 74-year-old leader.

A judge must decide whether to accept the prosecutors’ request and indict Berlusconi, or dismiss it.

Berlusconi has a long history of legal woes and fierce battles with the Italian judiciary, which he accuses of being politically motivated against him. But this is the first judicial action that targets his private life.