ROME — Police on Wednesday said authorities at Bologna's airport were searching for a suspicious package believed addressed to Italian Premier Silvio Berlusconi and flown aboard a cargo plane from Greece.Police spokeswoman Donatella Dosi told The AP in Rome the pilot of the TNT plane asked to make an unscheduled landing in Bologna on the Paris-bound flight after his company told them a suspicious package was "probably" on board.Bologna's airport was closed while the plane was searched for hours after it landed late Tuesday night.The ANSA news agency says Greek officials checking a list realized a package addressed to Berlusconi was probably among the cargo.