Police have been brought in to bolster Ōpōtiki's small contingent ahead of a gang tangi tomorrow.
The Bay of Plenty town has had an influx of members since a Mongrel Mob leader died on Friday.
Ōpōtiki College has chosen to close this week, and other schools have also shut.
Bus services were impacted today and the library closed its doors.
Acting Area Commander Tristan Murray says they expect to have up to 500 gang members in town tomorrow.
"We've been running about 50 police officers the last few days, tomorrow we're bumping that up to 100. And that's on top of the investigation staff that are already here."
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