The Federal Criminal Court said on Friday it had found the banker guilty of violating requirements to report suspicious transactions and fined him 50,000 Swiss francs ($55,000) plus court costs.

The ruling may be appealed.

The former anti-money-laundering executive at private bankCoutts & Co Ltd had denied any wrongdoing. Reuters is not naming him due to Swiss laws on privacy in court proceedings. Swiss markets watchdog FINMA in 2017 ordered Coutts to pay6.5 million Swiss francs for breaching money-laundering regulations in its business linked to 1MDB, but dropped its own proceedings against the executive.

FINMA's investigation found that between 2009 and 2015assets worth $2.4 billion moved through accounts at Coutts,which was founded in the 18th century and is best known asbanker to Britain's Queen Elizabeth.

The Swiss indictment had detailed warnings from Coutts colleagues about transactions by Low Taek Jho, or Jho Low, the Malaysian businessman tied to the 1Malaysia Development Berhad (1MDB) fund, which was set up in 2009 by the government of former Malaysian Prime Minister Najib Razak.

In Malaysia, Najib was found guilty of corruption and sentenced to 12 years in jail on Tuesday in the first trial over the multi-billion-dollar scandal at 1MDB that stretched to the Gulf states and Hollywood.

Low has denied any wrongdoing, saying in January that he acted only as an intermediary for deals involving 1MDB.

U.S. justice officials estimate $4.5 billion was siphonedout of Malaysia by high-level fund officials and associatesbetween 2009 and 2014, and laundered through countries includingthe United States, Switzerland, Singapore and Luxembourg.

By Michael Shields