The arrested motorists drove at speeds exceeding 160 kilometres per hour on a 120 kilometre zone in Alkmaar.
Also read: Speedster arrested on N4
A male driver drove 168 on 120km/h at N4, alkmar in his BMW at 08h22.
Next was a woman who drove her Mazda LDV at 162 on 120km/h at 10h27.
A driver was also caught driving 175km/h on 120km at 11h33 .One other was caught driving at 189 km/h on 120km/h.
12 fines were also issued for different violations.