A stabbing in Kaeo was the result of a dispute between flatmates, police say.
A man in his 20s was airlifted to Whangarei Hospital after being stabbed four or five times in the arms and back on Saturday afternoon.
The young man ran inside the town's Four Square, where a shop assistant stopped the bleeding until emergency services arrived.
St John Kerikeri operations manager Nick Scott said the victim had suffered a suspected punctured lung in the attack.
While his injuries were not life-threatening, the situation could have "turned pear- shaped" very rapidly.