A shocking video has emerged showing an elderly jihadi apparently teaching young orphans how to become suicide bombers - before taking them to the park to play on swings.
The new footage, which has purportedly been released by ISIS , shows boys as young as three and four-years-old, with one child sitting on the man's knee as he chats with them.
Other parts of the footage shows the pensioner taking the children to a park where they are made to take parts in drill's involving guns.
They are told to run and jump in the air in an effort to grab the weapon out of the elderly man's hand.
When one boy succeeds, he smiles and fires a round of bullets into the air.
The OAP is even seen pushing the children on a set of swings, in a sickening contrast to the deadly games he had them playing just moments earlier.
It is thought the children are all orphans, although it is not clear whether the man is their sole guardian.
The video comes after a short period of silence from the terror group in recent weeks as they focus their efforts into fighting in Iraq and Syria.
ISIS is now desperately trying to cling onto its strongholds in the two countries, but are losing ground fast in areas like Mosul and Raqqa.
The clip also features the elderly man taking a group of boys on a shopping trip to buy loose-fitting clothes so they are able to conceal suicide vests and other weapons beneath it.
ISIS has been known to use footage of children in the past to shock and appall its opponents.
One graphic video, released earlier this year showed a child shooting a prisoner at point blank range while standing in the middle of a kids' ball pit.
The child aims his weapon at the man's face before screwing up his face in fear as he shoots.