A major police operation involving the armed offenders squad has come up empty after police received reports of an injured woman in Woodley Ave, Remuera, in Auckland.

Five nearby schools have been advised they are no longer required to be in lockdown.

St Kentigern Boys', Girls', St Kentigern Preschool, Remuera Kindergarten and Remuera Intermediate were placed under a precautionary lockdown this afternoon but have been advised they are no longer required to be.

Police said they received a call from a man around 12.30pm saying there was an injured woman in Woodley Ave.

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Inspector Andy King from Auckland City Police said no injured people were found and there have been no other reports of any unusual behaviour.

He said they are now clearing the street.

Multiple police cars, the Armed Offenders Squad and a police helicopter were in Woodley Ave in Remuera.

Police say no shots were fired and no one has been arrested.

One worried mother was picking up her daughter from St Kentigern Junior School when it was placed in lockdown.

The woman, who asked not to be named, said the sight of armed police in the area had alarmed her.

"No one seems to know what has been going on but the school has been locked down as a precaution," she said. "As far as I know nothing has occurred at the school but I heard something had happened at an apartment block nearby."

A Woodley Ave resident who also declined to be named said he was shocked to see a police helicopter was patrolling the skies and armed police were mobilised.

"No one knows what is going on but it must be serious, so we are all just staying indoors."

A large number of police are in attendance including AOS and the Police Eagle Helicopter.

There are a number of cordons in the area and motorists are asked to stay away at this stage please.

Woodley Ave is one of Remuera's most prestigious streets - a tree lined cul-de-sac with multi-million dollar mansions offering views of the city skyline.

In a statement this afternoon, St Kentigern's said it received police instructions to enter a lockdown.

"[The schools] were in lockdown for approximately 30 minutes and then released.

"At this stage we have not been informed directly by the Police as to the reason for the lockdown.

Around 2pm they were released from lockdown. Normal activities resumed and no one was harmed.