Kassig family release letter from captive son
The parents of a US aid worker Peter Kassig, who is being held by Islamic State, have released portions of a moving letter he sent from captivity.
The letter was carried out of Syria by a hostage who had been released.
In the excerpts, Peter - who has changed his name to Abdul-Rahman when he converted to Islam last year - attempts to reassure his parents over his general well-being and his treatment at the hands of his captors.
One part of the letter describes the mental strain Kassig is under in captivity.
Kassig goes on to explain that he knows his parents are doing "everything you can and more" to secure his release, despite his kidnappers saying otherwise.
He then goes on to describe his fear over the possibility of being killed and the anxiety of "not knowing" what the outcome of his captivity will be.
Kassig also says he as "at peace with his belief" despite being in what he calls "a dogmatically complicated situation."