A man and woman have been charged over their alleged involvement in a fatal hit-and-run in inner Sydney.
A 20-year-old woman was walking across Lachlan Street in Waterloo about 2.15pm on Thursday when struck and thrown into oncoming traffic, police said on Friday.
She suffered critical injuries and later died in hospital.
Police say the car, believed to be a white Kia Rio hatchback, failed to stop.
A 50-year-old woman was arrested in Dapto near Wollongong on Friday and charged with hindering police officers in the execution of their duty, knowingly making a false or misleading statement and acting with the intention perverting the course of justice.
A short time later, a 21-year-old man, known to the woman, handed himself in at Wollongong Police Station.
He was charged with a string of driving offences including dangerous driving occasioning death, failing to stop and assist and proceeding through a red traffic light.
The pair was refused bail to appear at Wollongong Local Court on Saturday.
Also on Thursday afternoon, a woman in her 20s was killed in a head-on crash with a ute near Bathurst in central western NSW.
Emergency services were called to the collision about 4pm.
The woman died at the scene, while the male driver and female passenger of the ute were both airlifted to Sydney's Liverpool Hospital in a stable condition.
