The driver of the car which crashed into another car on the road shoulder, killing four people in an early-morning accident on the Central Expressway on Friday morning, has been arrested.

The 34-year-old man was arrested for dangerous driving causing death, and his driving licence has been suspended, police said on Friday.

The vehicle he was driving rammed into a broken-down car that had stopped on the road shoulder of the expressway heading north, near the Yio Chu Kang exit.

The accident killed Mr Amron Ayoub, 23; his Korean girlfriend Jamie Song, 24, and her parents, who had been standing behind the car. Ms Song's older brother, standing beside the car, was not injured.