Several residents living in the area said they were aware of a gathering in the park on Saturday night.
"There were lots of people yelling, lots of bad language. It kept us awake for a while, but it didn't seem too bad," one woman said. We do sometimes get a bit of noise on Saturday night, but fortunately not very often."
Another woman said there was "a lot of shouting" which woke her up.
Another neighbour said he was woken by sirens in the night, but went back to sleep immediately.
¦If you have information about this incident please call Detective Aaron Bunker on [06] 3490600. Or information can be provided anonymously through Crimestoppers on 0800 555 111.