Two men are in intensive care and a third has serious head injuries following separate incidents during a weekend of violence.
Police were called to a Wanaka house party where a fight had erupted between three men at around midnight on Friday, leaving one with serious head injuries.
He was taken by ambulance to Dunstan Hospital for treatment.
Police charged a man a short time later with intent to injure and possession of an offensive weapon.
In separate incidents overnight on Saturday, two men were treated for serious injuries.