Kellyanne Teggart's death in Derry is not suspicious, say police
The death of a 19-year-old woman who was found unconscious in a Londonderry flat is not being treated as suspicious following a post-mortem examination.
Kellyanne Teggart, from Portaferry, County Down, was found lying at the bottom of a flight of stairs at the flat in Cromore Gardens on Thursday.
At the time, police said they were keeping an "open mind" about how she died but arrested a 21-year-old man.
The man has now been released unconditionally.
Ms Teggart was a student nurse who had moved to Derry last week to begin a nursing degree.
She had been in a nightclub in the city centre with friends on Wednesday night.
The teenager left the club in a taxi at about 01:00 BST the following morning.
She was found unconscious in the flat at about 02:30 BST on Thursday and later died in hospital.