Kassig was an American humanitarian worker held hostage for more than a year before he was killed in November 2014.

The search and rescue group has found the remains of three unidentified bodies so far, according to anonymous sources.

A Qatari mission has begun searching for the remains of US hostages killed by ISIS in Syria a decade ago, two sources briefed ...

While the sources did tell Reuters whose remains the Qataris were searching for, it is believed that the bodies of two ...

In our news wrap Friday, the family of American hostage Kayla Mueller says she was repeatedly raped by Islamic State leader Abu Bakr al-Baghdadi before her death, according to U.S. intelligence.

US President Barack Obama on Tuesday confirmed the killing of US aid worker Kayla Jean Mueller, who was taken hostage in Syria by the Islamic State group, and vowed to track down her captors.