US banking giant Citigroup is facing a probe linked to the corruption scandal at world soccer body FIFA.
Citi has received a subpoena from US officials investigating allegations of bribery, corruption and money laundering at the Zuerich, Switzerland-based organisation, the bank said in a securities filing.
They are reported to have asked for details related to "banking relationships and transactions" regarding individuals "identified as having had involvement" in the alleged corrupt conduct.
Under anti-money laundering laws, banks must warn authorities about potentially suspect transactions.
Authorities have claimed that senior FIFA officials used various US banks to transfer and receive US$150mln in bribes and kickbacks, according to US broadcaster CNN.
Citi said it was co-operating with authorities on the subpoena sent by the US Attorney for the Eastern District in New York.