The Armed Offenders Squad has been stood down after reported "gunshots" were found to have come from a nailgun.
A police media spokeswoman earlier said armed police were responding to a report of a disturbance to a property. It is understood the property is in the Ōtūmoetai.
The caller they heard guns shots, the spokeswoman said.
Armed police were responding "as a precaution" and making inquiries.