Police have arrested four people following a drive-by shooting in Northland last month.
At about 6:30pm on May 7, a house on Brunner Terrace, Kamo, Whangārei was the subject of a drive-by shooting.
People were inside the house at the time, but no one was injured.
A stolen white Toyota Hiace van was also found on fire at the end of Lewis St in Kamo.
An investigation called Operation Brantley was launched the following week, which targeted members and associates of the Mongols motorcycle gang.
On Thursday, police in Northland and Canterbury carried out six search warrants - three in each region - with support from the Armed Offenders Squad, Detective Inspector Bridget Doell of Northland CIB says.
Four men, aged 49, 43, 18, and 17 - were arrested and charged with a number of offences. They are: doing a dangerous act with intent to cause grievous bodily harm, arson, and participating in an organised criminal group.
Three of the men, aged 43, 18, and 17 have also been jointly charged with stealing a car.
All four are due to appear in court on Friday. The two teenagers will appear in Christchurch, while the other two will appear in Whangārei.
At search warrants in Christchurch, police also found methamphetamine and more than $50,000 in cash.
"Today's arrests are a culmination of diligent investigative work by Police in both Northland and Canterbury districts," Det Insp Doell says.
"Police have zero tolerance for gang violence in our communities.
"We're putting those people involved in this sort of illegal activity on notice - if they choose to involve themselves in these events then they should expect to be targeted by Police."
Further arrests haven't been ruled out.