Social workers dropped plans to take the children of two known Islamist extremists into care after a council said they could find no evidence they were in danger of radicalised.

The London council had applied to the courts to take the five young children into care, fearing they risked suffering emotional and psychological harm because of their parents’ extremist views.

The children’s father, described as “a leading figure” of the banned terror organisation Al-Muhajiroun, has been on a terrorist watch list and their mother attended extremist meetings calling for jihad against non-Muslims.

But the council has now been allowed to drop the care proceedings after it said it could not demonstrate the children had been damaged.

Following a seven-day High Court hearing Mrs Justice Knowles agreed, saying there was no evidence that they had been harmed.

The case is thought to be one of a number in which councils have dropped plans to take the children of known extremists into care after being unable to prove they were in danger.