ZURICH, March 31 (Reuters) - Switzerland's competitionwatchdog said on Monday it had opened an investigation intoseveral Swiss, British and American banks over possiblecollusion to manipulate foreign exchange rates.
WEKO said it is investigating UBS, Credit Suisse, Zuercher Kantonal Bank, Julius Baer, JPMorgan, Citigroup, Barclays and RoyalBank of Scotland.
(Reporting by Caroline Copley; Editing by Matt Driskill)