Islamic militants have released a video which claims to show the beheading of Steven Sotloff, a US journalist kidnapped in Syria last year.
If corroborated it would be the second murder of a US journalist by the Islamic State of Iraq and the Levant, known as Isis, in just under two weeks.
Mr Sotloff, who freelanced for Time and Foreign Policy magazines, was shown kneeling against a desert backdrop with a masked man standing over him brandishing a knife.
您已閱讀27%（455字），剩余73%（1238字）包含更多重要信息，訂閱以繼續探索完整內容，并享受更多專屬服務。