Swiss federal prosecutors have announced a criminal case for suspected bribery linked to World Cup broadcast rights against Paris Saint-Germain's Qatari chairman and CEO Nasser Al-Khelaifi.

The investigation concerns alleged bribes offered to former FIFA secretary general Jerome Valcke to award 2026 and 2030 World Cup rights to Qatari-owned BeIN Media Group, the office of Switzerland's attorney general said on Thursday.

The latest proceeding in a broader Swiss investigation of FIFA is against "Jerome Valcke, the chief executive officer of the BeIN Media Group LLC Nasser Al-Khelaifi, and a businessman in the sports rights sector," federal prosecutors said.

Valcke was alleged to have received "undue advantages" from the businessman, who was not identified, to award "media rights for certain countries" for four World Cups from 2018 through 2030.

Valcke was questioned on Thursday and properties were searched in France, Greece, Italy and Spain.

Swiss prosecutors said the action was carried out with Eurojust, a European Union agency for cooperation in criminal matters.

Nasser Al-Khelaifi is Paris Saint-Germain's chairman and CEO. Jean Catuffe/Getty Images

"Multiple premises were searched, assets were seized and interviews were conducted as a result of this joint operation," the European justice body said in a statement.

The criminal proceeding was opened on March 20, but only announced on Thursday, the Swiss federal office said.

beIN Sports issued the following statement.

"Following a request by the office of the Attorney General of Switzerland (OAG), the beINSPORTS offices in Boulogne-Billancourt (France) were searched this morning. The employees on-site cooperated with the authorities until the end of the search. beINMEDIAGROUP refutes all accusations made by OAG. The company willfully cooperate with the authorities and is confident as to the future developments of this investigation.

The proceeding against Al-Khelaifi is one of the first direct links to Qatar in sweeping investigations by authorities in the United States, France and Switzerland of FIFA, international football, and the 2018-2022 World Cup bidding contests.

Al-Khelaifi's profile has risen in recent months as PSG pursued and sealed a world-record transfer of Brazil star Neymar from Barcelona for €220 million.

The case stemmed from a wider investigation of FIFA's business that saw criminal proceedings opened against Valcke in March 2016.

Valcke was FIFA's CEO-like secretary general under then-president Sepp Blatter from 2007 until he was fired in January 2016.

The French former TV presenter was in Switzerland on Wednesday to testify at the Court of Arbitration for Sport in his appeal hearing against a 10-year ban by FIFA for financial wrongdoing and abuse of expenses.