Patched members of the Rebels Motorcycle Club, which has been linked to violence and drug trafficking in Australia, have been spotted in Palmerston North this year.
There have been also been reported sightings of the gang in Whanganui, Whangarei, Taupo and Auckland.
With an estimated 2000 members, the Rebels are the largest gang in Australia and are considered a criminal organisation by the Australian government.
The acting Palmerston North area commander, Senior Sergeant Brett Amas, said police had information about Rebels being in the city.
"We are aware that there are a couple and they'll be dealt with like any other gang we have," he said.
