UPDATED 4.42pm One Jetstar flight had to be evacuated and up to three may have been delayed after a man running late triggered an alarm at Auckland Airport’s domestic terminal today.

The Aviation Security Service (Avsec) reported that at around 2.10pm, a man forced his way back through the airport’s “shark’s teeth gate” into terminal pier.

Auckland Airport back to normal Apparently someone went wrong way through security door

— Richard Harman (@RMAHarman) July 26, 2016

It was understood a passenger who was on a flight to Wellington decided to bypass security altogether because he was running late.

“Once the sterile area is beached an alarm is triggered and it is standard safety and security procedure to re-screen passengers in the area,” Avsec spokesperson Mike Richards said.

Delays were expected as a result of the breach and passengers had been sent back for re-screening.

Ridiculously long security queue at #aucklandairport #goingnowherefast

— Jo Schmelz (@JoSchmelz) July 26, 2016

The door was closed into screening area while the pier was secured.

“Avsec regrets any delays but must put passengers safety first,” Mr Richards said.

Auckland Airport spokesperson Simon Lambourne recommended affected passengers check the airport’s website and apps for the latest information.

@AKL_Airport apologises for any inconvenience caused by a security incident at its domestic terminal. Passenger screening has recommenced.

— Auckland Airport (@AKL_Airport) July 26, 2016

Despite the alert, the man made his flight and was to be interviewed by police upon his arrival at Wellington airport. It wasn’t clear whether he would be prosecuted over the incident.

“Depending on the circumstances, the response from us could range from issuing a formal warning to a fine – which varies in amount depending on category and severity,” Mr Richard said.

"He may also suffer consequences from the airline operator.”

The Jetstar flight, from Auckland to Dunedin and with 150 passengers onboard, was delayed by around an hour.

The flight was fully boarded and passengers were required to disembark for re-screening.

Another flight from Auckland to Christchurch was delayed by around 20 minutes, spokesperson Phil Boeyen said.

Asked whether the airline would be taking action over the incident, he said: “We will be liaising with Aviation Security on the incident.”