A man was left with two stab wounds after an incident in the Whangārei suburb of Woodhill early on Sunday morning.
Police were called to the Oakland Avenue address at about 5am.
The victim was found with moderate injuries, believed to be two stab wounds, and was taken to hospital, police said.
Hato Hone St John confirmed an ambulance treated one patient and took them to Whangārei Hospital in a moderate condition.
One person has been arrested.