It was a violent weekend in Wairoa with attacks on five people, including a Mongrel Mob member.

A major police operation resulting in at least 30 arrests is likely to stymie Australian gang the Rebels' growing presence in NZ, police say.

Luxury cars and motorbikes, drugs and thousands of dollars have been seized in a major police crackdown on organised crime.

A major police operation today has highlighted the fact that rival gangs are working together in the highly lucrative drugs trade, Police Minister Judith Collins says.

New Zealand police will be on guard against letting any Australian gangs set up shop here, Police Minister Judith Collins says.

You probably don't want to mess with Luigi 'Baby Shacks' Manocchio, who has just pleaded not guilty to charges of extorting cash 'protection' payments from New England's strip clubs.

A Mongrel Mob member has had his gang patch destroyed in a landmark court ruling.

In a dark basement below the main stage of Kawerau's town hall, a bunch of teenagers are on punching bags.

Three Mongrel Mob members were arrested in Hastings last night after one assaulted a woman and the other two stopped police from doing their job.