
Detective Senior Sergeant Scott Neilson said officers were called to Beatty St, Melville, about 4.30am today.
A second man was taken to Waikato Hospital, where he remained in a critical condition.
Police are making inquiries and are trying to identify and locate a third man at the scene.
They would like to hear from anyone who might have seen or heard anything, or who have any CCTV footage. Quote file number 250315/0371.