The NSW Government has on Wednesday confirmed that an immature fire ants nest had been detected and treated on a property site in Tweed Heads. A genetic analysis has commenced of the specimen fire ants to determine the likely source. This is supported with the tracing any movements of materials and engaging with the landholder. NSW Chief Invasive Species Officer Scott Charlton said: "Investigations and surveillance are underway following this detection; however, the fact that the nest was immature, or non-productive, is reassuring. A vigilant pest control contractor at the site quickly identified suspected fire ants. This is yet another reminder that vigilance, awareness and early detection are critical to keep these things out of NSW."