11/16/2014 05:43 am ET Updated Jan 16, 2015

UK Prime Minister Condemns Murder Of Islamic State Hostage Kassig

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LONDON, Nov 16 (Reuters) - British Prime Minister David Cameron said on Sunday he was horrified by a video posted online by Islamic State militants which claims American hostage Peter Kassig has been beheaded.

Kassig is also known as Abdul-Rahman, a name he took following his conversion to Islam while in captivity.

"I'm horrified by the cold blooded murder of Abdul-Rahman Kassig. ISIL (Islamic State) have again shown their depravity. My thoughts are with his family," Cameron, who is in Australia for a meeting of G20 leaders, said on Twitter. (Reporting by Kylie MacLellan; Editing by Mark Potter)