Invercargill police have arrested a man after a serious incident overnight which has left a woman in critical condition.
Police were called to a Mavora Cres, Heidelberg, property after a report of an assault.
A woman was located at the scene and transported to hospital with critical injuries.
Subsequently, a 51-year-old man known to the victim has been charged with wounding with intent to cause grievous bodily harm and attempted murder.