A second person has died in hospital following a fatal collision in Dimboola on 3 March.
It is alleged a Toyota Hilux towing a hay bailer and a Mazda sedan collided on the Western Highway about 5pm.
The driver of the Mazda, an 80-year-old Nhill woman, died at the scene.
Her passenger, an 85-year-old Nhill man, was airlifted to hospital with serious injuries and died on 10 March.
The driver of the Toyota, a 58-year-old man from South Australia was taken to hospital with minor injuries.
The man has since been arrested and charged with dangerous driving causing death, careless driving and other traffic related offences.
Major Collision Investigation Unit detectives continue to investigate the incident and urge anyone with footage or information to contact Crime Stoppers on 1800 333 000 or visit www.crimestoppersvic.com.au
