EU antitrust regulators on Thursday fined Nomura, UBS and UniCredit a total of 371 million euros ($452 million) for taking part in a European governments bonds trading cartel.

"This is a legacy issue dating back to 2007-2011 and we have taken appropriate action years ago to mitigate and improve processes," UBS said. "We note the European Commission's decision on this matter and are considering an appeal."

(Reporting by Oliver Hirt; Writing by Thomas Escritt; Editing by Riham Alkousaa)