The job cuts will be implemented in North America, Europe and Asia, in fixed-income trading, equity trading and corporate finance units, according to media sources.

The latest reduction is a part of the lender’s strategy, unveiled a year ago by chief executive Sergio Ermotti, and is expected to be notified after the launch of its third quarterly earnings results.

The bank has slashed 2,000 jobs in the investment business last year, after sustaining a $2.3bn unauthorized trading loss.

In 2007, it employed about 24,000 and has since reduced the work force to 16,432 as at the end of June 2012, and plans further cuts to bring down staff levels to 16,000 within five years.

The bank offers investment banking, asset management, and wealth management services for private, corporate, and institutional clients worldwide, as well as retail clients in Switzerland.