Wellington motorists are being warned about a large gang presence travelling through the Capital on Tuesday for a tangi.
Police said a ceremony will take place in Wainuiomata on Tuesday morning, with attendees then travelling through to Porirua in the afternoon.
"Motorists can expect to see a large number of gang members and associates travelling from the Hutt Valley to Porirua," a police spokesperson said.
The spokesperson said police will have a highly visible presence in these areas.
"We urge all those travelling on our roads to not act in a way that puts other road users at risk and to expect delays," the spokesperson said.
"Any unlawful behaviour will be investigated and followed up with enforcement action.
"If you are concerned about your safety in regards to the group, or witness illegal behaviour happening now, please call 111 immediately."
To report, or send in any footage of the group causing concern, they encourage people to file a report online at 105.police.govt.nz, call Police on 105, or report anonymously via Crime Stoppers on 0800 555 111 or www.crimestoppers-nz.org.