Washington: A sickening video released by the Islamic State (IS) terrorist group on Tuesday purportedly shows a child executing a man, whom the group claimed to be an Israeli spy.

The video identified the slain man as the 19-year-old Mohamed Sa'id Ismail Musallam, an Israeli citizen of Arab descent, according to a CNN report. The IS claimed in the video that Musallam was an Israeli agent, sent to infiltrate the militant group. The family of the Israeli man had earlier denied that he was involved with the Israeli spy agency Mossad. Israeli officials declined to comment on Tuesday.