Spokesman the Rev. Federico Lombardi declined to immediately identify the person Friday, saying only that Vatican judicial authorities are examining his case. It is not clear whether it is a layman or a cleric.
Vatican documents leaked to the press in recent months have pointed to power struggles and accusations of corruption touching senior Vatican cardinals. In one case, a cleric who complained was reportedly sent to Washington as papal envoy to get him out of the Vatican.
In another case, Vatican officials have accused the president of the Vatican bank of leaking confidential documents. He was ousted by the board Thursday.