BRUSSELS UBS UBSN.VX, Credit Suisse CSGN.VX and Royal Bank of Scotland (RBS.L) are being investigated by EU antitrust regulators for suspected rigging of interest rates linked to the Swiss franc, a person familiar with the matter said on Wednesday.
The European Commission has been looking into the case for about a year as part of its investigation into the fixing of lending benchmarks.
The source said there were other banks involved. It was not immediately clear which other financial institutions were under investigation.
Commission spokesman for competition policy, Antoine Colombani, said: "Our investigation is ongoing. We have no further comment."
RBS, UBS and Credit Suisse declined to comment.
The EU competition watchdog imposed a record 1.7 billion euro fine on five banks - Deutsche Bank (DBKGn.DE), RBS, JP Morgan (JPM.N), Citigroup (C.N), Societe Generale (SOGN.PA) - and UK-based broker RP Martin last month for rigging other benchmarks.
(Additional reporting by Matt Scuffham in London and Clare Hutchison in Zurich, editing by Adrian Croft and David Evans)
Chinese court rules in favour of Apple in local design patent disputes
BEIJING, March 25 A Chinese court has ruled in favour of Apple in design patent disputes between the Cupertino, California company and a domestic phone-maker, overturning a ban on selling iPhone 6 and iPhone 6 Plus phones in China, Xinhua news agency reported.