Corrects headline to show the staffer told Fed of false Libor in 2008.

WASHINGTON (MarketWatch) - An unidentified employee of U.K. bank Barclays PLC told the New York Federal Reserve Bank in April 2008 that the bank was filing false reports on Libor, according to documents released by the central bank on Friday. The documents show that reports of this admission were quickly circulated to the Federal Reserve Board of Governors and the Treasury Department. Then-New York Fed President Timothy Geithner briefed other U.S. agencies on the Libor problems in May 2008, the documents show. Information that there were problems with Libor started in the fall of 2007, the New York Fed said.