Southern District Detectives are looking to speak with two possible witnesses as they continue to investigate a fatal house fire at Hackham West yesterday.

Emergency services responded after the blaze broke out in the Amsterdam Road home just before 8.30am on Saturday 25 May.

Two occupants were inside the home at the time of the fire.

Sadly, despite the efforts of fire fighters and paramedics, a 61-year-old man died at the scene.

A 46-year-old woman was transported to hospital by ambulance with life-threatening injuries. She remains in hospital in a stable condition.

The cause of the fire is undetermined.

Detectives from Southern District CIB are investigating the incident and are preparing a report for the State Coroner.

As part of the investigation, police specifically want to speak to two people who may be able to assist detectives.

The first is a person who was observed walking along Amsterdam Road at 8.10am. They were wearing black track pants with a white stripe down the legs, dark shoes, a grey long sleeve hooded top and carrying a black backpack with white print or logo on the front.

The second is a man who knocked on the door of a house in Oslo Crescent, Hackham West and asked the occupant to call the fire brigade and police as a house was on fire around the corner and he didn’t have a phone with him.  This man is described as being of Caucasian appearance, 177cm tall with a skinny build, and dark moustache and goatee. He was wearing black pants and a black hoodie and spoke with an Australian accent. The man left when he heard emergency services sirens approaching the area.

Detectives are asking the two people to come forward, along with anyone else who may have information and are urged to contact Crime Stoppers on 1800 333 000 or online at www.crimestopperssa.com.au You can remain anonymous