Police are at the scene of an incident in the West Auckland suburb of Glen Eden.
Officers were called to the area about 10.30am, a police spokesman said.
"A section of Brunner Rd is currently closed while inquiries are conducted at the scene," he said.
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Police are yet to give details about the nature of the incident.
However, a person has been taken into custody as a result.
"Police would like to reassure the community there is no cause for concern at this point in time," the spokesman said.