Police are conducting a pre-planned search warrant at a New Plymouth property.
Police say the armed offenders squad was attending as a precaution.
According to Stuff, occupants of a Lawry St, Moturoa, property have been told by police to come out with their hands up.
"Your house is currently surrounded by armed police," Stuff reported an officer as saying.
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"If you listen to police instruction you will not be harmed."