Grandson of Nigerian-born United Kingdom immigrant featured in ISIS video

He doesn’t know anything. “They are just using him as a shield”, the 59-year-old told reporters. “Because, she has let herself down”.

The majority of the footage, which has yet to be independently verified, features a masked man who insults David Cameron. At the end of the rant the man shoots the prisoner in front of him at point blank range, as the other four men are also murdered.

Mr Dare, whose daughter is the known British jihadist Khadjiha Dare, said he had not seen the boy for more than three years, ever since his daughter took him with her to Syria.

Dare, an Islamic State (ISIS) member who has in the past expressed a wish to become the first woman to behead a hostage, made her way to Syria in 2012 and married a Swede known as Abu Bakr, who is thought have been killed since.

Grace changed her first name to Khadija after she began attending a mosque.

Clutching an AK-47 rifle, Isa is captured by his proud mother who posts the shocking photograph to her Twitter feed.

Together, the couple have had two children, the oldest being the six year old boy, dressed in military fatigues and a black bandanna bearing the white mark of ISIS and chillingly declaring that ‘We will kill kuffar [non believers]’. A council spokesman told the Standard: “We are in liaison with police and are deeply concerned that there may be any connection between these abhorrent acts and our community”.

Human Rights Watch, which reported on interviews with 25 children fighting in Syria, said that children growing up in militant groups grow up fast.

Dailymail said Grace may have been radicalised online. At that time, judges had considered cases involving 12 different families. Assistant commissioner and senior counter terrorism officer Mark Rowley said some children were “almost babes in arms”.

Boris Johnson, the Mayor of London, said Britain had a “duty of care” to Isa Dare.

“It’s heartbreaking what’s happening to that kid”. People who know him, including his sister, could not say for sure whether he is the man in the video. “This is child abuse, there’s no question at all”.

He added: “This child is a victim of child abuse and he is, as I understand it, a British national”.

“The eyebrows are bushy and this guy is taller, my brother is shorter and he has got broader shoulders, but he has got stooped shoulders so I don’t think it is”.

“Plainly his interests are not going to be well served by remaining with that family”.

Told a former neighbor of the child’s mother: ‘She used to take my dogs out for a walk and I would give her a pound.

Konika Dhar, from north London, said she does not believe her brother is the man in the film, but she conceded the voice sounded “a bit like him”.