A statement from the OAG said it was "suspected that Jerome Valcke accepted undue advantages from a businessman in the sports rights sector in connection with the award of media rights for certain countries at the FIFA World Cups in 2018, 2022, 2026 and 2030 and from Nasser Al-Khelaifi in connection with the award of media rights for certain countries at the FIFA World Cups in 2026 and 2030".
The Office of the Attorney General of Switzerland (OAG) said on Thursday it suspects Valcke of accepting "undue advantages" from Al-Khelaifi in connection with the award of media rights for both the 2026 and 2030 World Cups.
The European Union's Judicial Cooperation Unit (EUROJUST) said "multiple premises were searched, assets were seized and interviews were conducted as a result of this joint operation".
"I refute the accusations against me or Nasser".
His involvement is a direct link to Qatar, host of the 2022 World Cup, in investigations led by the United States and Swiss into football corruption. "There was never any exchange between Nasser and I. Never".
Al-Khelaifi has served as president and chairman of PSG since 2011-the year the club was purchased by Qatar Sports Investments (QSI)-during which time they have largely dominated French football.
Prosecutors have indicated that Khelaifi was under suspicion only for actions taken as the head of the beIN group, which operates on five continents.
Meanwhile, another inspection campaigns were launched in Greece, Italy, and Spain in the framework of the Swiss criminal investigation on the crime of bribing Valcke to buy TV rights to World Cup tournaments. The Independent's Luke Brown reported this summer's extravagant spending of more than £200 million on world-record signing Neymar, as well as the future £166 million purchase of Kylian Mbappe, could breach Financial Fair Play rules.
Valcke was sacked by FIFA in January 2016 in connection with affairs around World Cup tickets and television rights.