The mayor of the Italian capital, Ignazio Marino, stepped down on Thursday, Italy’s SkyTG24 and ANSA news agency reported, citing a statement from the city head. News of Marino’s resignation comes amid a mounting scandal over his expense accounts. Pressure on the mayor to resign has been growing for months, with the campaign against Marino supported by opponents both inside and outside his party, AP reported. Roman prosecutors opened an investigation into Marino this week over the use of his city hall credit card, following allegations that he had been expensing private dinners while claiming them to be official business. Marino, who was elected mayor in May 2013, said his resignation was not an admission of guilt.