A man has been charged with murder following a car chase and fatal crash that claimed the life of a father on a southern NSW highway.
Police say a Ford Territory was travelling on the Princes Highway when it struck a petrol tanker at Albion Park Rail about 2.20am on Saturday.
Daniel Merrett, 27 - also known as Daniel Clulow - died at the scene.
The 25-year-old female driver, believed to be Mr Merrett's sister, and two other passengers - a man and a woman also aged 25 - were rushed to hospital where they remain in a stable condition.
Investigators believe the Ford Territory was being pursued by a silver Toyota Corolla when it smashed into the truck. Media reports indicate shots may have been fired at the SUV.
Detectives began a search for occupants of the Toyota and on Wednesday afternoon arrested two people - a man, 34, and woman, 25.
The man was charged with murder and armed robbery. He was refused bail to appear at Gosford Local Court on Thursday.
The woman was charged with numerous offences unrelated to the crash and was also refused bail to appear at the same court.
Police are still searching for Darren Butler, 27, and 25-year-old Holly Green.
Members of the public are urged not to approach them but call Crime Stoppers.
© AAP 2019