The mother of two of the four people killed on the Dreamworld ride says her family has been devastated by the tragedy.
Kim Dorsett's adult children Kate Goodchild, 32, and Luke Dorsett, 35, were killed in the catastrophic accident on the Thunder River Rapids ride on Tuesday.
"I have three children and have lost two of them today - my whole family has been wiped out," she told the Courier Mail.
Ms Goodchild had two daughters, aged eight months and 12 years. Ms Dorsett said the oldest girl was blaming herself.
"She has had a truly terrible day, she is going through unimaginable pain at the moment," Ms Dorsett said.
"I'm at a loss as to how to deal with this now - I woke up this morning with three children and tomorrow I am only going to have one left."
Canberra-based Ms Dorsett and her family were holidaying on the Gold Coast and had extended their stay by a few days.
Dreamworld will remain closed on Wednesday while police examine how the four were killed on a 30-year-old water raft ride at the Gold Coast theme park.
New Zealand media is reporting that the fourth victim was a woman orginally from Kawerau, who had lived in Sydney for at least a decade.
The NZ Herald said relatives were preparing to rush to the Gold Coast to support the family.
The mother-of-two was on the ride with her 10-year-old son, who is now in hospital.
Her husband and daughter were not on the ride, the NZ Herald said.
