The Police Investigative Unit is considering opening another investigation against Prime Minister Ehud Olmert, Channel 2 reported Wednesday evening. The issue in question was first reported by Yoav Yitzhaki and involves sums of money allegedly transferred to Olmert by Likud activist Shlomi Oz during the 1999 Likud party primaries. According to the report, Oz gave NIS 100,000 to Olmert. An adviser to the prime minister flatly denied the report, saying "it never happened." Channel 2 quoted Oz as saying in response to police suspicions that he had already been investigated twice in the matter, and the police had found nothing against him. Olmert is currently the subject of three investigations - one examining his role in the sale of the controlling stock of Bank Leumi, another into suspicions of cronyism during Olmert's term as Industry, Trade, and Labor minister, and a third investigating Olmert's purchase of his Cremieux St. home in Jerusalem.