A Colombian affiliate of Big Four audit firm Deloitte agreed to pay $900,000 as part of a settlement with the Public Company Accounting Oversight Board (PCAOB) addressing alleged quality control lapses that occurred during the 2016 audit of a bank.

Deloitte Colombia’s quality control system failed to provide it with reasonable assurance for its audit work’s compliance with PCAOB standards and the independence of its personnel, the regulator said in a press release Wednesday.