The sources added that the ISIL has set up special institutes under the cover of religious training schools and uses them as its own base to recruit children.

According to the sources, the ISIS training has three stages of religious training to familiarize them with the terrorist group's special approach, preparing the children for hard situations by physical training and teaching them how to use weapons and spiritual training which means preparing the children for different crimes, including beheading.

They added that the ISIL has formed a full brigade of 140 children in Raqqa and intends to send them to the battleground.

Earlier reports also said that the ISIS is raising a generation of child killers from birth, according to the latest report by London-based counter-extremism think tank, Quilliam.

The paper said in March that ISIS militants train children as soldiers, executioners and suicide bombers from an early age to make them “more lethal fighters than themselves.”

Quilliam researchers also add that as many as 50 children from the UK could be in the future mujahedeen training camps, as over 800 Britons are believed to live in ISIL-controlled territories, FNA reported.

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