(Reuters) - Britain's Serious Fraud Office is liaising with U.S. counterparts in their investigation into the scandal linked to a trader dubbed the "London Whale" that cost JPMorgan Chase & Co
"We are liaising with our U.S. counterparts as well as the Financial Conduct Authority over this case," a Serious Fraud Office spokeswoman said.
U.S. prosecutors brought criminal charges last week against two former J.P. Morgan employees, Javier Martin-Artajo and Julien Grout, alleging they deliberately tried to hide hundreds of millions of dollars in losses.
Losses from the trades, which were made in the London division of J.P. Morgan's Chief Investment Office, first became public in April 2012.
Since then, the bank has conducted an internal investigation and regulators in the United States and the UK have opened their own inquiries.
(Reporting by Karen Rebelo in Bangalore; Editing by Steve Orlofsky)