Updated

The Obama administration was working early Wednesday to confirm whether a video released by Islamic militants purportedly showing the beheading of American journalist James Foley was authentic.

However, two U.S. officials told The Associated Press Tuesday that they believed the video showed Foley's death. A statement by Foley's mother, Diane, posted on the "Find James Foley" Facebook page requested privacy "as we mourn and cherish Jim."

"We have never been prouder of our son Jim. He gave his life trying to expose the world to the suffering of the Syrian people," the message said. "We implore the kidnappers to spare the lives of the remaining hostages. Like Jim, they are innocents. They have no control over American government policy in Iraq, Syria or anywhere in the world."

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