WASHINGTON — The Federal Reserve is concerned about suspiciously heavy trading of gold futures after its meeting last week that may have been triggered by a premature release of market-sensitive information.

The central bank said Tuesday that news organizations that receive embargoed information from the Fed agree to withhold information until the time set for its release. The Fed statement said, "We will be conducting follow-up conversations with news organizations to ensure our procedures are completely understood."

Trading in financial markets is now dominated by automated computer systems, which make trades in tiny fractions of a second that can lead to millions of dollars in profit. Receiving the data early — even by a few milliseconds — can give an unfair advantage to some firms.