Australia’s ANZ Group (ANZ.AX), opens new tab plans to “get to the bottom” of allegations of misconduct that have been raised against its bond trading operations and will hold people accountable for any wrongdoing, its CEO said in an email to staff.

The email, a copy of which has been reviewed by Reuters on Friday, comes after media reports that the lender had overstated the value of government bonds that it traded by more than A$50 billion ($33.81 billion) over a one-year period.