Rome, July 19 - In an operation involving both social-security and tax-revenue agencies, a team of 114 inspectors probing suspected contributions fraud uncovered 30 million euros in unpaid taxes due to fake employee contributions, according to a joint statement Friday. In the first part of the sweep, a team of 40 inspectors from INPS social security and 74 officials from the tax revenue agency scoured companies in two central Italian regions, Lazio and Abruzzo. The team identified a number of companies that made their tax declarations appear to be in order, but claimed tax credits for non-existent social security contributions. Of the total amount of taxes due, 20 million were tallied from businesses in Lazio. The period covered by the investigation was 2009-2013. Inspectors and officials examined more than 60 companies. The operation marks the first of a series of collaborative operations planned between the anti-fraud divisions of the two agencies in the Lazio and Abruzzo regions requiring matching and sorting data collected by each.