Three people have died in a horrific head-on city car crash, including a man who sped away after police arrived at a home to conduct a welfare check.
A 42-year-old man drove off in a white Audi after officers were called to a mental health incident at a property in Gymea Bay, southern Sydney, at 12.25am on Saturday.
Shortly afterwards, police received reports an Audi had rolled over a concrete barrier and landed on a blue Toyota sedan at Sans Souci, about 13km away.
