The video shows computer analyst Peter Moore, who was kidnapped from a Baghdad government building in 2007 along with four British security agents who were guarding him, the BBC reported.
Moore reportedly says in the video the hostages are being treated well.
"I can confirm to CNN that we have received a video of one of the British hostages kidnapped in 2007," embassy spokesman Sean McColm told the U.S. broadcaster. "We will continue to work hard for the safe release of all the hostages."
NBC reportedly holds celebs hostage to Jimmy Fallon's show
Boston schools pull out free condoms over wrapping complaints