The person who shot and killed a woman in Greymouth is still on the run, and may be armed.
It happened at a house in Marsden Road yesterday, neighbours say they heard one gunshot at around 4pm.
The victim of the shooting has not yet been formally identified and police have been guarding the property overnight.
Police say it's possible the shooter left the house with another person.
It's not yet known if the the victim knew her killer.
Police have been guarding the scene overnight.
They have urged the public not to approach anyone acting suspiciously but report them to 111 immediately.
Information can also be reported anonymously to Crimestoppers on 0800 555 111.
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