A University of Otago student who died at a rowdy flat party may have been trampled by other partygoers as she attempted to leave the overcrowded house, a witness says.
Two other people were seriously injured following a panicked stampede from the party at a student flat on Dundas St, known as "The Manor", around midnight.
A student who attended the party told the Herald people fell down the flat's stairs and landed on top of the woman, who suffered fatal injuries.
University of Otago vice-chancellor Professor Harlene Hayne said the student community had been badly affected by the death of the woman, who was a student.
"We are deeply saddened by what occurred last night. We are supporting the family of the student who died," she said.
"Our staff are working with them today, and will continue to do so, at this very difficult time."
The university would work with police as they continued to investigate the incident.
'Please don't let me die, I don't want to die'
Other partygoers told of being crushed and trampled while trying to flee the out-of-control student party.
One student told the Herald she was nearly crushed in the stampede to exit the flat and was fearful she would die.
The situation reminded him of the Hillsborough disaster when 96 people were crushed to death in the stands of an FA Cup match between Liverpool and Nottingham Forest in 1989.
"There was one point where I was swept over and fell down with a couple of other people," he said.
"It was pretty standard [for flats to be full], it's happened before at flat parties but this was certainly worse than I've experienced in the past."
"It was like a school of fish moving around … you didn't really have control over what was happening."
Another partygoer told the Otago Daily Times he saw St John whisk three people away from the scene in an ambulance.
Many of those at the party were panicked during the incident as partygoers tried to leave the house. It "felt like an hour" for him to get out, he said.
Overnight, the intersection of Dundas St, Clyde St and Lovelock Ave was blocked off by firefighters and police crew.
Hundreds of people had attended the party, and spilled out on to Dundas St after the incident. A section of the street was later cordoned off by police officers.
Emergency services were called to that property - on Castle St, also in the student quarter - after the incident which occurred during a concert by the band Six60.
Up to 1500 students were at the party. Police discovered the balcony had been overloaded.
Witnesses described seeing bloodied, injured people - described by police as "walking wounded" - after the incident.