Brazil's FIFA member and 2014 World Cup chief Ricardo Teixeira spent three hours being questioned by fraud investigators this week, according to reports from Rio de Janeiro.
Teixeira met officers from the federal police's financial crimes unit Delefin and was quizzed about allegations he received payments from FIFA's collapsed marketing company ISL, Brazilian sports newspaper Lance reported.
BBC's Panorama has previously named Teixeira as having allegedly received payments via a Liechtenstein-based company called Sanud.
FIFA say they will release the ISL file from a Swiss court case next month, containing the names of those who received money from the company, which sold World Cup TV rights.
Vitor Poubel, the head of Delefin, told Lance: "Everything is being investigated and in addition we can also ask for Ricardo Teixeira's private fiscal and banking records."
Teixeira, the former son-in-law of ex-FIFA president Joao Havelange, was questioned in relation to separate allegations of money-laundering after a request by federal prosecutor Marcelo Freire.
Havelange has also been named by Panorama as having allegedly received payments from ISL.
Nicolas Leoz, FIFA member from Paraguay and president of South American football, was named in the Swiss court in Zug as having received payments of 130,000 US dollars from ISL.
