A woman who had a firearm pointed at her and her two-year-old son during an armed offenders squad call-out in Oamaru last week is demanding an apology.

She says a drill was mistaken for a gun which led to the incident on Friday.

Up to twelve heavily armed AOS members converged on a South Hill home in Wansbeck Street in the early afternoon, after a member of the public reported seeing a man wielding a gun.

The woman, who lives at the house with her son, says both had firearms pointed at them as they tried to walk out of the house during the incident.

She did not want to be named because she feared unwanted attention.

Police won't comment on what was found at the house as the investigation is ongoing.

The armed offenders squad swarmed a home in Oamaru today after a man was seen wielding a gun in public.

Senior Sergeant Jason McCoy says the AOS and uniformed officers were called to a property in Wansbeck Street at about eleven AM.

The man was arrested without incident and taken into custody.

A witness says about twelve AOS members were involved in the operation at the house.

They shouted instructions at the occupants, and at least two were handcuffed and ordered to sit on the footpath outside the property.

A reporter earlier witnessed four police cars parked outside the house and officers were seen coming and going.

Tees Street in Oamaru was also blocked to traffic for a time.

An Omarama-based gunman has just come back from a successful turn at the cowboy action world championships held in the United States.

The event sees competitors, wielding firearms typical of the mid-to-late nineteenth century, in a Wild West scenario.

One North Otago woman is about to reach an important milestone.

She's been brightening the lives of residents at the Iona Home and Hospital in Oamaru for a quarter century..

and she's showing no signs of slowing.

The second Portside Punch charity boxing event is set to take place in Oamaru tomorrow night in what's sure to be a big night of hard-hitting action.

The Oamaru Rowing Club is looking to plug a financial leak following the departure of a key tenant.

Harbourside Fitness leased out the gym on the club's second floor, but their departure means the coffers are starting to run dry.

Steampunk took over Oamaru during Queen's Birthday Weekend, as enthusiasts celebrated the genre with a parade and vaudeville show.

The festival is inspired by science fiction and science fantasy literature, and attracts visitors from around the world.