An investigation is underway after a fatal stabbing in the Hunter Region overnight.
Emergency services were called to a home on Parbury Road, Swansea, at about 8.20 pm, following reports of a stabbing.
Officers attached to Lake Macquarie Police District attended and found two teenage boys with stab wounds to the chest.
Witnesses rendered assistance to a 16-year-old boy before he was treated by NSW Ambulance paramedics, but he died at the scene.
A second 16-year-old boy was treated by NSW Ambulance paramedics, before being taken to John Hunter Hospital in a serious condition, where he underwent surgery.
A crime scene was established and an investigation began into the circumstances.
Following a search of the area, police located a 16-year-old boy in the backyard of a home on Parbury Road, Swansea, about an hour later.
He was arrested and taken to Belmont Police Station.
Investigations are continuing.
Anyone with information about the incident, or dashcam or CCTV from the area is urged to contact Crime Stoppers on 1800 333 000.
Image: NSW Police