(FOX NEWS) U.S. intelligence officials are investigating a claim by ISIS that its sole known remaining American hostage, an aid worker held for nearly a year and a half, has been killed, and the terrorist groups claim that her death came in a Jordanian airstrike, sources told Fox News.
Kayla Mueller, 26, whose identity had previously not been revealed at the request of the U.S. government and her family as the Pentagon worked to secure her, is believed to be the last American hostage the terrorist army is holding, since the beheading of Peter Kassig, a 26-year-old American aid worker, killed in November. In its statement, ISIS also claimed Mueller was the only person killed in the airstrike, claiming none of its fighters injured or killed.
“We are obviously deeply concerned by these reports," said National Security Council spokeswoman Bernadette Meehan. "We have not at this time seen any evidence that corroborates ISIL’s claim.”
Advertisement - story continues below
