The author of a landmark report into child gender services says the treatment has been oversold.

The 15-year-old was prescribed the medication without having spoken to a doctor, a court ruling says.

Dr Hilary Cass says adults who deliberately spread false information are putting young people at risk.

Sonja was speaking as a review said children were let down by a lack of research into gender services.

It comes after a review found there was "not enough evidence" the drugs are safe or effective.

The replacement services for the Tavistock Centre will now not open until next year.

New analysis finds most children had a significant change in their mental health while on the drugs.

NHS England says the drugs will only be prescribed for those signed up to a clinical research programme.