The Islamic State in Iraq and Syria (ISIS) has released a new sickening video showing a young boy taught to execute a prisoner by directly shooting him in the head.

The footage is believed to be filmed in the northern Iraqi city of Mosul, which has been under ISIS control since June 2014, and was released yesterday via the group’s social media accounts.

In the video, an ISIS executioner brutally beheads one of the two prisoners – wearing orange jumpsuits – while the boy watched. The other executioner then hands the boy a pistol, and forces him to shoot at the other prisoner’s head.

the propaganda footage is not the first of its kind. Last month, the terror group released a video featuring five boys from Britain, Egypt, Turkey, Tunisia and Uzbekistan, executing prisoners in the same way.

ISIS has been recruiting children to be the next generation of jihadists, and regularly using them as fighters and suicide bombers.