Police have named the teenager who died after attending the Boomtown fair in Winchester.
Medical staff were alerted just after 10pm where she was taken to the Royal Hampshire County Hospital but was pronounced dead on arrival.
Eleanor Rowe, aged 18, from Glastonbury in Somerset has been named as the teenager who died at the festival.
The post mortem examination took place on Monday, August 12 and the results were inconclusive.
Further toxicology tests are being completed to determine the cause of death.