Police are appealing for public assistance as part of a critical incident investigation at St Mary's this morning.
About 4am today (Tuesday 22 October 2024), two officers in a fully-marked police vehicle saw a dark-grey Holden Insignia sedan stopped on Putland Street at St Marys.
Police had stopped near the sedan when the driver allegedly accelerated towards the Great Western Highway, where police lost sight of the vehicle.
Police followed and found the sedan had hit a silver Toyota Corolla hatchback. The driver of the Holden allegedly fled the scene on foot.
The driver of the Toyota died at the scene; he is yet to be formally identified but he is believed to be in his 40s.
A 43-year-old man, alleged to be the driver of the Holden, was arrested a short time later on Chapel Street, St Mary's. He was taken to Nepean Hospital under police guard for mandatory testing.
A crime scene has been established and a critical incident team from North Shore Police Area Command is investigating the circumstances surrounding the incident.
The investigation is also subject to an independent review.
As the critical incident investigation continues, police are appealing for anyone who has dashcam, CCTV or information about the movements of the Holden sedan (registration FCG82A) to come forward.
The vehicle is believed to have travelled on Putland Street, Mamre Road and the Great Western Highway, St Mary's.
Anyone with information is urged to contact Nepean Police or Crime Stoppers on 1800 333 000.
Anyone with information that may assist investigators is urged to contact Crime Stoppers: 1800 333 000 or https://nsw.crimestoppers.com.au. Information is treated in strict confidence. The public is reminded not to report information via NSW Police social media pages.
