Citigroup is deeply embroiled in an investigation into FX manipulation at the London fix and now the most senior member of the unit has quit to “to pursue other interests,” and will leave in March. Anil Prasad joined the bank in 1986 and has been global head of FX since 2007.

Dow Jones cities a person familiar with the matter who said Prasad’s departure is “entirely unrelated to the continuing investigations”.