Two men have been arrested in Canterbury and charged with firearms and drugs offences.
Police said on Monday they located a wanted 25-year-old man at a residential property in Pareora, south of Timaru.
A warrant for his arrest was issued after a fight he was allegedly involved in, during which he is accused of firing a weapon.
He will appear in Timaru District Court charged with possessing an offensive weapon and drug and driving-related charges.
At the same property, police said they found a 40-year-old man wanted on a firearms charge.
Police said they also found 19.4g of cannabis there, and "this is likely to lead to further charges being filed".
"This is a great result for police," said Senior Sergeant Leigh Jenkins.