The U.S. Federal Reserve is investigating possible improper conduct in foreign exchange markets by large banking institutions, a spokesman said on Wednesday.
"The Federal Reserve is continuing to investigate in the foreign exchange markets in coordination with other authorities, including the Department of Justice,” the spokesman said in a statement.
The Fed also is working closely with authorities overseas, according to the statement.
The announcement was made as global regulators fined five major banks, including UBS <UBSN.VX>, HSBC <HSBA.L> and Citigroup <C.N>, $3.4 billion for failing to stop their traders from trying to manipulate the foreign exchange market.
(Writing by Doina Chiacu; Editing by Bill Trott)