The grotesque nine-minute footage shows five children – believed to be from Britain, Egypt, Turkey, Tunisia and Uzbekistan – wielding handguns, wearing the desert camouflage and then standing behind kneeling prisoners clad in orange jump suits in the ISIS capital of Raqqa, in Syria.
According to the jihadist-monitoring companySITE Intelligence Group, the young uniformed ‘soldiers’ – who look no older than ten or eleven years old – make statements in Arabic before raising their handguns and killing the men in front of them.
The executed men in orange jumpsuits are believed to be Kurds, who are apparently being ‘punished’ for recent Kurdish advances in Syria and Iraq.
The second child from the right, who has fair skin, is believed to be called Abu Abdullah Al-Britani – an Islamist name which has previously been used by other Brit jihadis – though this has yet to be independently confirmed.
He shares the same name with another Brit who fought for ISIS.
The other Al-Britani was the Islamic name of Assad Uzzaman, originally from Portsmouth, who was 25 when he was killed in Syria last year.
The group also threatens world leaders including Barack Obama and Bashar Al -Assad.
At least 50 British children are thought to be living in ISIS-controlled territories and are being brainwashed and trained up to become the next generation of executioners and suicide bombers.