The man credited with securing the 2016 Games for Rio had his home raided on Tuesday as Brazilian and French authorities said they had uncovered an international corruption scheme aimed at buying votes in awarding the Games.

Police entered the home of Brazilian Olympic Committee President Carlos Nuzman and emerged with suitcases, documents and a computer. Detention warrants were issued for Nuzman and an associate, businessman Arthur Cesar de Menezes Soares Filhoi. In total, 11 detention warrants were issued in Brazil and France in what police dubbed “Operation Unfair Play.”

Investigators said Nuzman, an honorary member of the International Olympic Committee, was a central player in buying votes for Rio’s Olympic bid in 2009.

Nuzman brought together Soares Filho and Lamine Diack, the former head of track and field’s governing body (IAAF) who at the time was an IOC voting member, according to authorities.

Soares Filho’s company, Matlock Capital Group, allegedly paid Diack $2 million into an account of Diack’s son, Papa Massata Diack. Authorities said they had “substancial” documentation of payments made through Caribbean accounts.

A lawyer for Nuzman on Tuesday night denied any wrongdoing. All the other accused denied the charges.

In France, a two-year-old probe into corruption in sports first came to light with the arrest in November 2015 of Lamine Diack. The French have been looking into allegations that Diack, one of his sons, Papa Massata Diack, and others were involved in blackmailing athletes and covering-up doping positives.