The Wellington Phoenix are adding extra security and police for this weekend's Kiwi derby in response to threats of organised violence from Auckland FC fans.

Saturday's A-League match in the capital will be the first time new club Auckland FC have faced the Wellington Phoenix.

"We're going to make sure that there's never trouble at Wellington Phoenix games," general manager David Dome said.

"We don't want this to be the first one. So, we're very conscious and very sensitive to that and we're certainly going to go all out to make sure it's a safe environment for everyone who comes along."

A police spokesperson confirmed to 1New they were aware of threats that have been made online and are monitoring the situation.

"It's not part of sport in this country, it's never been part of the Phoenix culture," Dome said.

"So, look, even if it's got a tiny chance of it happening, we're going to take it very seriously and we're going to make sure that we do everything to keep that sort of part of football around the world out of the game here in New Zealand."

Those sentiments were backed by the Phoenix's supporters' group, the Yellow Fever.

"This is New Zealand. We're not talking about a 100-year rivalry between two teams across the river," supporter Dale Warburton said.

"We have no interest in that whatsoever."

Warburton added that organised violence "would spoil the occasion and create a lot of hassle in future games".

"No one wants to go to a game surrounded by 100 police people because somebody has done something stupid on an away trip."

Auckland FC chief executive Nick Becker was quick to distance the new A-league club from those making the anti-social remarks.

"I think you find in these big occasions, you get a few keyboard warriors trying to stoke up things that aren't really there," Becker said.

He told fans: "Have a lot of fun, be loud but also, you know, don't take it too far."

Auckland FC fan Ezra Whall said the behaviour doesn't represent the identity the club is trying to develop.

"I don't really consider them as proper football fans," he said.

"If you want to do that stuff, go and do it elsewhere. But I don't think football is the place to be doing that."

Between 300 to 400 Auckland fans are expected to travel to Wellington for the match between the A-League's two front-runners – the Black Knights are two points clear of the Nix at the top of the table.

Both clubs are unbeaten in their first two games, with Auckland winning both their opening fixtures while Wellington drew their season opener against Western United.