A homicide investigation has been launched after a late night incident at a packaging business in south Auckland.

Emergency services responded to calls that a person was seriously injured at a Kerwyn Avenue address in East Tamaki at 9pm on Friday night.

At 11pm police confirmed a homicide investigation had been launched. Police said they were speaking to a man about the incident and were not seeking anyone else.

Inspector Duncan Hall said witnesses were also being interviewed at the commercial address.

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The Kerwyn Ave property is the business address for cardboard box manufacturer Charta Packaging.

Further information is expected to be released tomorrow.