The Swiss Attorney General's Office (OAG) opened criminal proceedings against Beckenbauer and three other former high-ranking German soccer officials last September. The proceedings related to allegations of fraud, criminal mismanagement, money laundering and misappropriation.
The OAG confirmed in a statement to Reuters that "Franz Beckenbauer has today been interrogated by federal prosecutors of the Confederation... in Berne" adding that the 71-year-old had been "cooperative."
Beckenbauer has previously admitted to making mistakes but has denied wrongdoing.
Read the full article on eurosport.co.uk: Beckenbauer questioned by Swiss prosecutors over World Cup bid