The Armed Offenders Squad has been called to a camping site in Manakau in southern Manawatu late last night.
Police were called to the incident at the Waikawa Camping Ground, near Manakau, south of Levin at 9pm last night.
A police statement said there were reports of a disagreement between campers and that a man had a knife and was threatening others.
It was also alleged the man had fired some shots from an air rifle.
A post on social media described gunshots being heard and said a man was allegedly "threatening to stab and shoot people".
