JERUSALEM - Israeli authorities are opening a criminal investigation into Prime Minister Ehud Olmert's role in the sale of one of Israel's largest banks.

Officials say the banking investigation will look into the government's 2005 sale of a controlling interest in (Bank Leumi) one of the country's largest financial institutions.

The state comptroller, a government watchdog, has alleged that Olmert favoured business associates during the sale.

Olmert was finance minister at the time.

The Justice Ministry says a review of the comptroller's report "led to the conclusion that a foundation of evidence has been built that would justify opening a criminal investigation.''

Police say their anti-fraud unit will handle the investigation.

Olmert, who has been dogged by corruption allegations during his three-decade political career, has denied any wrongdoing in the case.

His lawyer says Olmert looks forward to a chance to clear his name.