Screams and police dogs' barks were heard from within a Christchurch property as armed officers arrested a man during a three-hour stand-off.
It comes as a homicide investigation has been launched after a teenager's death late Friday night.
Police have been at a Dunster St address since 4:50 pm today.
Two police dogs were recently seen leaving the property shortly before a man was led into a vehicle in handcuffs.
![Police fired a number of tear gas canisters into the house including in the back door. Photo / George Heard](https://www.nzherald.co.nz/resizer/v2/3GQDYTWRHSCEP32TL2DUVLHJRE.jpg?auth=bd345c5186a555ff06f46aad72a482fd6d373e28fdce83714895461772dc020b&width=16&height=10&quality=70&smart=true)