The bank called trader conduct described in its settlements with Britain's Financial Conduct Authority and the U.S. Commodity Futures Traders Commission "unacceptable" and said more would be done to reinforce high standards.

"Further training and enhancements are ongoing and will remain a priority," it said in a statement.

The FCA and CFTC fined five banks a total of $3.1 billion in after a year-long global probe into the $5.3 trillion-a-day foreign exchange market.

(Reporting by Clare Hutchison. Editing by Kirstin Ridley)