Police investigating the crash that killed 17-year-old Albion Park girl Casey-lee Hull have asked witnesses to come forward.
Investigators believe several cars were travelling north on Boollwarroo Parade, Shellharbour, around 7.45pm on Thursday when the accident occurred.
They are urging anyone who witnessed the crash, or the events leading up to the it, to speak with police.
Investigators have been told Ms Hull’s black Suzuki Swift, and a Ford Falcon XR6 being driven by a 22-year-old Warilla man, were allegedly travelling at high speeds through the 50km/h zone shortly before the crash.
Police believe the teenager lost control of her car as she tried to negotiate a left hand bend on Boollwarroo Parade, before it mounted the western kerb and struck a large tree.
She had been following the Ford Falcon XR6 at the time.
Emergency services were called to the area and the Ms Hull was eventually released from the car.
She was treated at the scene by Ambulance Paramedics and then airlifted to St George Hospital where she immediately underwent surgery.
On Saturday, Lake Illawarra police confirmed Ms Hull had died.
The 22-year-old man was interviewed by investigators at Lake Illawarra Police Station and has been released pending further inquiries.
The Suzuki has been seized by police and will undergo mechanical inspection.
Friends took to social media at the weekend to pay tribute to Ms Hull’s ‘‘beautiful soul’’.
“Rest In Peace beautiful Casey-lee Hull, forever in our hearts,” one person commented.
“She was a lovely young girl from a beautiful family,” another person wrote.
Anyone with information about the incident should call Crime Stoppers on 1800 333 000 or go to report information online.