Police are appealing for public support to locate a man wanted after a search warrant turned up firearms and drugs at a house in Wainuiomata.
They say Kane Byrne, 27, is actively avoiding police, who have a warrant for his arrest.
A sawn-off shotgun, two other firearms and a quantity of chemicals were found when police arrived at the address in Wainuiomata.
The Clan-lab team are investigating the chemicals found.
Four people from the address are in police custody, but are yet to be charged. Byrne remains at large.
Anyone with any information on his whereabouts is urged to contact Wellington police on (04) 381 2000 or call Crimestoppers anonymously on 0800 555 111.