The FIFA president, along with European football's governing body, have been linked to individuals now accused of bribery.
Documents leaked from Panamanian law firm Mossack Fonseca included a television rights contract bearing Infantino's signature.
UEFA confirmed in a statement yesterday that Swiss authorities raided their Nyon offices on Wednesday, despite Gianni Infantino's denial of any wrongdoing.
"UEFA can confirm that today we received a visit from the office of the Swiss Federal Police acting under a warrant and requesting sight of the contracts between UEFA and Cross Trading/Teleamazonas.
"Naturally, UEFA is providing the Federal Police with all relevant documents in our possession and will cooperate fully."
Swiss police authorities have insisted no specific individual was the target of the raid.