The father of a British boy apparently taken to Syria with his mother has claimed his son is one of the five boys allegedly involved in an Islamic State (IS) propaganda video.

The footage shows the quintet standing in front of five men in orange jumpsuits, with one boy captioned as Abu Abdullah al-Britani (the Briton).

The father, who asked not to be named, told The Mail On Sunday that he suspected al-Britani was his son.

He said the boy's mother is Sally-Anne Jones, a British former member of an all-girl punk rock group turned jihadi bride.

The man said: "He was brilliant, just a normal boy - always chasing bugs, going down the park.

"I have had to block it out. It's been hard, we just have to carry on. It's disgusting he's been brainwashed."

The father said he had not seen his son for three years.

In the video, a child captioned Abu al-Bara al-Tunisi (the Tunisian) addresses the men - apparently Kurdish fighters - promising more violence, according to the BBC.

The other children are said to be Abu Ishaq al-Masri (the Egyptian), Abu Fu'ad al-Kurdi (the Kurd) and Yusuf al-Uzbaki (the Uzbek).

Children have featured prominently in IS propaganda.

In February, IS released a video purportedly showing a young British boy - thought to be four-year-old Isa Dare - blowing up a car and killing three prisoners inside.

He is the the son of Muslim extremist Grace "Khadija" Dare from Lewisham, south-east London, who travelled to Syria in 2012.