AN 18-year-old Rotherham man died and a one-year-old baby was left fighting for her after a crash between a car and a lorry on the Great North Road in Doncaster.
Police named the teenager who died as Luke Hardwick, believed to have lived in Benton Terrace, Swinton.
The baby's condition was described as "critical but stable" on Friday afternoon.
After the accident, the car driver, a 31-year-old man from Wath who suffered whiplash injuries, was arrested on suspicion of causing death by dangerous driving.
The accident happened when a silver BMW 316 travelling towards Doncaster on the one-way traffic section tried to make a u-turn from a lay-by and pulled in front of a DAF lorry about 150 metres from Redhouse Lane.
The BMW spun, left the road and knocked down a metal road sign before stopping on the grass verge facing towards Wakefield.
The dead teenager, from Rotherham, and the child, from Wath, were passengers in the car. The baby being treated in Sheffield Children's Hospital for a life-threatening head injury.
Another passenger in the car, a woman aged 22, from Wath, suffered hand and face injuries.
The lorry driver, a 36-year-old man from Doncaster, suffered slight back and leg injuries and his 20-year-old male passenger from Holmfirth, West Yorkshire, suffered slight lower back injuries.
Police are appealing for witnesses to call South Yorkshire Police on 101 quoting incident number 431 of 20 December.