The Federal Reserve says it mistakenly posted confidential economic projections on its public website last month.
In a brief statement, the Fed says it has asked its inspector general to investigate what it called an inadvertent disclosure.
The incident occurred at a time when the central bank is already the subject of investigations by the Justice Department, a House committee and its inspector general involving the disclosure of confidential information from a 2012 Fed meeting.
The economic projections posted on June 29 had been prepared by staff for the Fed's June meeting. Private economists say they did not contain any surprising revelations about the Fed's views. The staff projections are prepared for the Fed's closed-door meetings and are not normally released for a period of five years.