Miss Gwyneth Lok, 20, a project executive with events company Chupa, suffered critical head injuries and has been in a coma since the accident last Saturday night (Nov 24).
Doctors at Alfred Hospital in Melbourne, Victoria, have told the family to be prepared for the worst, a reader familiar with the incident told The New Paper on Tuesday (Nov 27).
TNP understands that Miss Lok underwent surgery to drain a build-up of fluid in her brain, and the damage to her head is critical.
Several of her family members, including her parents and 13-year-old brother, have flown to Melbourne to be with her.
Miss Lok, who recently graduated from Ngee Ann Polytechnic with a diploma in early childhood education, was one of the five Singaporeans involved in the accident.
The four women and one man were in a blue Renault at about 8.15pm (5.15pm Singapore time) last Saturday when the accident happened in Windermere, more than 100km from Melbourne.
The driver, Nasuha Nasser, 21, a psychology and media and communications student at the University of Melbourne, was charged on Sunday by the Victoria Police's Major Collision Investigation Unit with dangerous driving causing serious injury and negligently causing serious injury.
She was driving on Madden Road but allegedly failed to stop at the intersection with Remembrance Drive, causing a white Triton to hit the left side of the car. The Renault came to a halt after crashing into a nearby tree.
The 48-year-old driver of the Triton was not injured, but his 10-year-old daughter who was also in the car suffered minor injuries.
Nasuha and two passengers who were her schoolmates were taken to Ballarat Base Hospital with minor injuries.
Her twin sister, Miss Naimi Nasser, a business management student from Singapore Management University, was air-lifted to Royal Melbourne Hospital for critical head and chest injuries. She is in a stable condition and conscious.
Miss Lok, who was initially thought to be 26, was flown unconscious to Alfred Hospital.
The reader who contacted TNP said Miss Lok flew to Australia last week and had planned to spend about 10 days holidaying there.
The reader, who did not want to be identified, described her as a bubbly and positive person who was well-travelled and independent. She added that Miss Lok had saved up for this holiday and was also saving to further her studies.
Staff from Alfred Hospital confirmed that Miss Lok is in the Intensive Care Unit.
Attempts to reach Miss Lok's employer Chupa for comment have been unsuccessful.
On Monday, Nasuha was granted bail at the Ballarat Magistrates Court. If convicted, she can be jailed up to five years for dangerous driving causing serious injury, and up to 10 years for negligently causing serious injury. She is expected to return to court in February.