The security breach has affected flights at the domestic terminal.

Passengers travelling on all flights at Auckland Airport domestic terminal were off-loaded from their planes after a security breach.

They were required to be re-screened before being allowed back on board on Thursday morning, with travellers reporting huge queues of people snaking through the terminal.

Auckland Airport said about 8am that security re-screening had begun but there would be delays to flights. The queues had cleared by 9am

Supplied Passengers from domestic flights wait to be re-screened by security.

Have you been affected by the security breach at Auckland Airport? Email us at newstips@stuff.co.nz

An Auckland Airport spokeswoman said the breach happened after a person entered the airside part of the terminal through the arrival doors, rather than the departure gates.

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"Someone has jumped over a barrier and and skipped the security testing by entering through the arrivals door - we don't know why they've done this yet but we need to re-screen all customers as a precaution."

A passenger who was travelling to Wellington described everyone being asked to disembark from the plane and head back to security.

"There's currently a massive queue snaking all through the airport," he said.

Esther Cunningham, who was travelling to Queenstown, said there were hundreds of people waiting to be re-screened.

"It's a pretty big line but airport security and staff are doing an awesome job of getting everyone on earlier flights through to the gates."

Ian Bailey, who was also travelling to Queenstown, said he was meant to arrive there at 8:30am.

"I'm on the plane now but we haven't taken off yet, I thought I'd be in Queenstown by this time."

Massive queues at #AucklandAirport following the security breach. pic.twitter.com/JS1PX1b0ip — Justin Stewart (@justinstewart) June 27, 2018

While Cunningham believed Airport staff handled the incident well, some other passengers did not share these views - Rebecca Fitzpatrick who was travelling to Christchurch said the re-screening process was an absolute "shambles".

"People were pushing, it was a mob and there was no organisation for the queues, it really should have been sorted into lines based on flight departure times."

Fitzpatrick said the handling of the breach made her worry about how an actual emergency would be handled.

"I have no problem with having to be re-screened but it was just mayhem and it does make me worry what kind of organisation there would be if there was a real emergency," she said.

Fitzpatrick did mention however that the security staff at the screening were efficient and friendly.

Security staff had details of a specific man they were looking for among the passengers.

This is the third time in recent weeks there has been a delay in security screening at the domestic terminal.

Somebody should start a website detailing the security exploits at Auckland airport. Just be prepared for it becoming a full time job with daily updates. — Steve Biddle (@stevebiddle) June 27, 2018

On June 1 passengers faced a lengthy wait after an unexpected delay with security screening.

In May a similar security breach took place after a passenger re-entered a secure area through an unauthorised door, causing passengers at both Auckland and Wellington Airport to be re-screened.