Multiple people were found unwell at the address of sudden unexplained death yesterday in Hamilton.
Police received a report that three other people were unwell at a house in Casey Avenue, in Fairfield early yesterday morning.
Police said one person was found dead and three others were taken to Waikato Hospital, one of them is in a serious condition.
A scene examination is taking place this morning and a post-mortem examination of the deceased is also underway today.