Knife-wielding man arrested after woman found dead in NSW home

A 72-year-old man has been arrested after a woman was found dead inside a home on the NSW Mid North Coast.

Emergency services were called to a property on Corella Close in Congarinni around 11am today following reports of an assault.

When they arrived on the scene, officers found the body of a woman, believed to be in her 70s, and a 72-year-old man armed with a knife.

Police confronted the man and arrested him after a struggle.

He was treated by paramedics before being taken to hospital with suspected self-inflicted injuries.

The woman, who is yet to be formally identified, died at the scene.

A crime scene has been established, and an investigation into the circumstances surrounding her death is under way.