Italian Prime Minister Romano Prodi is seen at lower house of the parliament before the vote of confidence in Rome. he won a confidence vote in the Lower House on Wednesday but he is expected to resign after defections in his coalition made it clear he will not have a majority in the Senate. [Photo: Xinhua/AFP]

Italian Premier Romano Prodi won a confidence vote in the Lower House on Wednesday but he is expected to resign after defections in his coalition made it clear he will not have a majority in the Senate.

The vote saw 326 MPs voting in favor and 275 against the confidence motion.

Prodi had originally planned to go to the Senate on Thursday to seek its confidence but is now expected to tender his resignation to President Giorgio Napolitano after meeting with his cabinet early Thursday morning.

Napolitano would then confer with the former heads of state, the speakers of the Senate and Lower House and political party leaders before making any decision.

He has a series of options open to him including asking Prodi to try and form a new government, giving an institutional figure like the Senate Speaker Franco Marini an exploratory mandate to try to form an interim government to adopt needed reforms before elections or calling early elections and asking Prodi to stay on in a caretaker capacity.

Officially most parties say they would prefer early elections but there is a cross-party groundswell for adopting reforms first, which would involve having an interim executive.

The government crisis began on Monday when the Udeur party of ex-Justice Minister Clemente Mastella said it had withdrawn its support from the government and would vote against it in any confidence vote.

However, the Udeur did not take part in the Lower House vote because their votes would not have been decisive and the confidence motion was on the government's achievements over the past 20 months to which the party had contributed.

The Udeur confirmed it would vote against Prodi in the Senate.

Without the Udeur's votes in the Senate Prodi no longer had a majority and the situation here became worse after other senators who had backed his government said he no longer had their support.

These included independent conservative Domenico Fisichella and former ally Lamberto Dini, while leftist Franco Turigliatto confirmed he would vote against Prodi.

Mastella decided to bring down the government citing differences on a number of issues including electoral reform, a proposed referendum on the current electoral law and relations with the new Democratic Party, which was created through the fusion of the Democratic Left and centrist Daisy parties.