Auditors found blank passport booklets and visa stickers in the office of a former IT officer at Ghana's Embassy in Washington.
The discovery was made during a forensic audit.
The officer is accused of hiding digital records related to his work.
Signs suggest that official computer data was removed before the audit team arrived.
The audit was conducted by external auditors.
The former IT officer's name is Fred.
Ghana's Embassy in Washington is cooperating with the investigation.
Further details are expected as the investigation continues.