Italian authorities have arrested 11 people in a probe of corruption linked to the Sicilian Mafia and construction contracts for Milan's Expo 15 fair.

Milan Judge Maria Cristina Mannocci wrote that company administrators, consultants and accountants closed their eyes to corruption and mob links relating to the fair that was a point of pride for Premier Matteo Renzi.

Prosecutors told reporters in Milan Wednesday they had seized 5 million euros ($5.6 million) in assets, including 400,000 euros in cash found in a truck traveling from the Milan area to Sicily. Anti-Mafia prosecutors allege that the cash was being laundered.

Among the alleged crimes are false bookkeeping, tax evasion, money-laundering, embezzlement and, for two of the arrested suspects, helping Cosa Nostra.