Robbers have made off with jewellery and a large haul of cash in a late-night heist at Dargaville's Warehouse.
Police say two armed robbers threatened staff before taking off with gems and cash about 11pm on Sunday.
Police say the haul included a significant quantity of cash.
No one was injured in the terrifying hold-up, which happened three hours after closing time.
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Dargaville Detective Shawn House said a number of items of jewellery were taken in the robbery and it was highly likely the robbers would be looking to sell them.
The public was asked to contact police immediately if they were offered jewellery for cheap prices.
Police were examining the Victoria St store and reviewing security footage.
House also asked people to call police if anyone had large quantities of coins or notes that seemed out of the ordinary.
A reward would be offered for any information that led to a successful prosecution.
Anyone with information can contact House on 021 191 5776 or anonymously on 0800 555 111.