One person has been taken into police custody after an 11-hour standoff with New Plymouth police and the armed offenders squad.
Police were first notified about the incident in Spotswood at 10.15am, and confirmed tonight one person has been arrested.
"Police attended what was initially believed to be a family harm matter after it was identified a man had breached bail by going to an address in the suburb of Spotswood," police said in a statement.
"As the man was known to carry firearms and there was concern for others, armed police were dispatched as a precaution."
Cordons were in place at the intersections of Paritutu Rd and Ngamotu Rd, Tumai St and Marama Cres and Paritutu Rd south of Simons St. The man was located on a property on Paritutu Rd.