Three people have been arrested and four vehicles seized after an operation targeting illegal street racing in Palmerston North over Saturday night.
Another three have been summonsed for driving with excess breath alcohol.
Police said they were aware a large gathering of vehicles had been planned and put in place an operation to target any illegal activity.
"We intend to continue to target risky behaviour from antisocial road users who are participating in illegal street racing," Manawatū Area Prevention Manager Senior Sergeant Phil Ward said in a statement.
"Police intend to continue to be visible at planned meet-ups and hope our enforcement action provides reassurance to those in the community who have been affected by this behaviour."
Snr Sgt Ward added these events are "disruptive and frustrating" for residents, and asked anyone with concerns about antisocial road users to call 111 if it is happening now, or call 105 or make a report online if it's afterwards.
