WASHINGTON - Hacker group Anonymous released a recording on Friday of what appears to be a conference call between the FBI and Scotland Yard held last month to discuss operations against the group.

The audio of the nearly 17-minute conference call was posted on YouTube along with an e-mail invitation from a Federal Bureau of Investigation agent setting up the call for January 17.

The FBI did not immediately return phone calls or emails asking about the Anonymous claim while a spokesman for Scotland Yard told AFP: "We are looking into the reports."

The e-mail invites members of European law enforcement agencies to take part in a conference call "to discuss the on-going investigations related to Anonymous, Lulzsec, Antisec, and other associated splinter groups."

The email with details for accessing the call was sent to law enforcement officials in Britain, France, the Netherlands and others but the only people who identify themselves on the call are from the FBI and Scotland Yard.