(AP) The Islamic State group in Iraq and Syria -- which has threatened to kill American hostages -- is holding a young American woman who was doing humanitarian aid work in Syria. That's according to a family representative.
The 26-year-old woman is the third American known to have been kidnapped by the militant group. She was captured last year.
More than a week ago, an American freelance journalist was beheaded by the group, which had kidnapped him in November of 2012. A video of his beheading showed another missing American journalist, and warned that he would be killed next if U.S. airstrikes continue.
The U.S. government and the woman's family requested Tuesday that she not be named for fears of her safety.