A 37-year-old woman died in a car crash in Tai Po on Monday, while another three people were hurt.
Police said they received reports slightly before 4pm that a private car had rammed into a van that was parked on Po Heung Lane, near a roundabout.
The van then veered forward and hit a female pedestrian, who ended up being trapped between the vehicle and a lamp post. Officers said she sustained multiple injuries and died at the scene.
Another 88-year-old pedestrian suffered serious wounds to her head, and was rushed to the Prince of Wales Hospital.
The van driver, as well as a passenger on the private car, also sustained minor injuries.
Officers later arrested the private car driver, 60, on suspicion of dangerous driving causing death.