Mar 20, 12:32 PM EDT

Italian minister resigns after construction work probe

AP Photo
AP Photo/Giuseppe Lami

Buy AP Photo Reprints

ROME (AP) -- Italy's infrastructure minister resigned Friday, days after the arrest of a former top official in a corruption probe of some of the nation's major public works projects.

Minister Maurizio Lupi told Parliament he was stepping down even though he is not under investigation. He denies any wrongdoing. No replacement for Lupi was immediately named.

Four people, including the ex-ministry official who oversaw infrastructure projects under seven governments, have been arrested.

Prosecutors are investigating construction contracts involving some of Italy's most ambitious projects, including stretches of a high-speed train line, the Italian pavilion for the world's fair that opens soon in Milan and Rome's subway expansion.

Premier Matteo Renzi's government has been plagued by coalition bickering almost from its inception last year but Renzi dismissed any notion Lupi's departure would hurt his government.

There will be "no consequence of a political nature for the government," Renzi told reporters in Brussels. "We will go forward with reforms."

With fighting corruption one of Renzi's priorities, some in the government sought to put a positive spin on the resignation of Lupi, who is from the New Center Right party founded by defectors from former Premier Silvio Berlusconi's center-right party.

`'I think that this government can come out strong from this chapter," Agriculture Minister Maurizio Martina was quoted as saying by the Italian news agency ANSA.

© 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Learn more about our Privacy Policy and Terms of Use.