A 19-year-old woman who apparently hit her head when diving into a pool at Casino on Saturday died in hospital yesterday as a result of her injuries.
Sydney media are reporting that the woman and two friends broke into the Casino Memorial Pool on Saturday night at around 11pm.
Fairfax Media named the woman as Christina Knox, a former student at Casino High School.
She apparently dived in at the shallow end, hit her head and and lost consciousness.
Police have been the two other young women went to her aid and called emergency services.
Ambulance paramedics treated the woman at the scene and she was taken to Lismore Base Hospital in a critical condition. She died without recovering consciousness.
Police told media it was not clear whether the woman and her friends had been drinking before the accident.
A report will be prepared for the Coroner but police investigations are continuing.
Family and friends have used social media to pay tribute to Ms Knox.