The official said the investigation was not a routine matter but rather a significant inquiry into possible fraud by company officials.
The Government has said that it will investigate possible fraud within the bank.
Exchange officials at the time denied any connection between the attempted suicide and possible fraud.
Opposition leaders said they would investigate for possible fraud.
She would not say how many companies were being investigated or the type of possible fraud.
Another way to look for evidence of possible fraud is to analyze the data using Benford's law.
The report did not name the people suspected of crimes or say how much money may have been involved in possible fraud.
On 2005-09-13, officials vowed investigation of possible fraud and waste.
In September 2012, questions were raised about possible fraud by the organization.
Such instances have led to questions of possible fraud and identity theft.