A 22-year-old man is helping police with inquiries following an Armed Offenders Squad (AOS) operation in Lower Hutt today.
Streets surrounding the Naenae Rd location were cordoned off and school pupils were told to stay indoors.
Police were responding to reports firearms were involved in what was believed to be a domestic incident.
The cordons were lifted by 12.40pm.
A police spokesman said no arrests had yet been made and there were no reports of anyone being injured.
An ambulance had been on stand-by at the cordon.
Thanks to www.twitter.com/psycik who provided live updates from within the cordon at the time.