Ms Altman claims her brother "groomed and manipulated" her and performed sex acts on her over several years, including "rape, sexual assault, molestation, sodomy, and battery", according to a court filing seen by the BBC.

Ms Altman said she sustained "great bodily injury", severe emotional distress and depression.

She added that she had incurred numerous medical bills because of medical and mental health treatment for her injuries.

In the UK, victims or alleged victims of sexual offences have a right to lifelong anonymity. The UK legislation which creates this right does not apply to people in the US.