At least six police cars were at 123 Poporangi Rd last night. Rupert Gaddum, farm manager at Tuapae Farms, was one of those listed as living at the address. There are several houses on the property.
Last night Gaddum's family were anxiously awaiting news.
"I can't get hold of anyone at all," said his brother.
Police were investigating several possibilities, including that the woman accidentally shot herself, said central communications Inspector Paul Jermy. People were cooperating.