Four people have been arrested in a stolen vehicle in Pukekohe following an aggravated robbery in Rototuna, Hamilton on Tuesday afternoon.
The incident occurred when an alleged offender was interrupted while interfering with a vehicle in a supermarket car park about 4pm.
The alleged offender and victim got into a brief altercation, police said in a statement.
A second offender then began assaulting the victim.
A third offender then drove a vehicle toward a witness who attempted to intervene.
The vehicle hit the witness, who suffered injuries to his leg.
The first offender then began to assault the witness as he lay on the ground.
The group of three offenders got into a car that had been stolen the previous evening in Porirua and left the scene.
Shortly before 2pm yesterday, police received information that the stolen vehicle had been seen in the Auckland suburb of Glenfield.
Police found the vehicle, which headed south on the northern motorway before being stopped by police spikes at Pukekohe.
The four occupants of the vehicle fled on foot and were arrested.
A youth has been charged with wounding with intent to cause grievous bodily harm.
Another youth and an 18-year-old female have been charged with aggravated robbery.
All four people arrested were charged with unlawfully getting into a motor vehicle.
The group are due to appear in the Hamilton Youth and District Courts today.