FOUR children reported their parents for allegedly supporting Islamic State and forcing them to watch sick beheading videos.

The siblings, aged 10, 14, 16, and 18, are now understood to have been taken into care in Britain after the eldest contacted Childline and raised the alarm.

She claimed they were “kept at home, did not attend school and were kept socially isolated, only being allowed out once in every three weeks”, The Times reports.

High Court papers also stated the youngest child, who has learning difficulties, was left so traumatised by the alleged “physical and emotional abuse” he is now unable to speak.

The court also heard how the children had complained their parents, of Somali origin but from the Midlands, expressed anti-Semitic, anti-British, homophobic and anti-white views.

They also claimed their parents had tried brainwashing them with extremist videos — including one showing a rotting corpse.

The details emerged last week following a hearing in the family division of the High Court.

The parents, whose names cannot be reported for legal reasons, have denied the allegations.

Ms Justice Russell said all four children had now been removed from the family home and were in local authority care pending decisions about long-term living arrangements.

She said the teenage girl had raised the alarm by emailing Childline, which police managed to trace to the family home.

Dame Esther Rantzen, the Childline founder and president, branded the case”horrific” and applauded the young girl’s courage.

The High Court judgment said: “There are outstanding issues of considerable seriousness in respect of allegations made by the children both as to the extent of the physical and emotional abuse within the family home and as the complaints they have made that their parents tried to brainwash them and to influence them into adopting extremist views, sometimes known as radicalisation.

“(Their parents) continue to deny the extent of complaints made of physical chastisement and of making the children watch inappropriate images of extremism on videos such as a beheading by Al-Shabaab, and of a rotting corpse.

“The children also said that [their parents] supported Abu Bakr Al-Baghdadi [an ISIS leader].”

The article originally appeared on The Sun and has been republished here with permission.