(ANSA) - Milan, October 17 - The head of public works in Bergamo, Rossano Breno, announced his resignation Wednesday amid a widening corruption scandal in the Lombardy region. Breno, head of the Compagnia delle Opere di Bergamo for the past eight years, is under investigation for corruption. He denied any wrongdoing but said he was stepping down to clear the way for investigators. One day earlier, after his administration collapsed because of corruption scandals, besieged Lombardy Governor Roberto Formigoni said that a non-political technocrat executive will be in charge of the region until elections. Formigoni, a member of ex-premier Silvio Berlusconi's People of Freedom (PdL) party, saw his administration thrown into crisis last week when Domenico Zambetti, a PdL regional councillor and a member of Formigoni's executive government, was arrested for allegedly buying votes from the 'Ndrangheta mafia syndicate. With Zambetti's arrest and a separate corruption probe, as many as 14 councillors in the Lombardy regional executive government and assembly are now under investigation. They include Formigoni himself, who is accused of corruption related to health contracts. The governor denies any wrongdoing. photo: Lombardy Governor Roberto Formigoni.