Lagan Tow Path attack on autistic girl investigated by police Teenager knocked unconscious in incident that was videoed Updated A still from one of three videos of the attack that have been circulated Never miss a thing from Belfast and beyond - sign up for FREE newsletter direct to your inboxInvalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice Police have launched an investigation after a teenage girl with autism was viciously attacked.