UPDATE: Police are working to determine the cause of a house fire which claimed the life of a man in North Albury.
Forensic officers spent hours at the damaged Mate Street home on Friday following the fire a day earlier.
The 39-year-old occupant, Matthew Maynard, walked from the house with serious burns after the blaze started about 4pm on Thursday.
Mr Maynard went to a friend's home on nearby Glenly Street and laid down on a lounge.
A passing ambulance was flagged down but the 39-year-old died about six hours after the incident in Albury hospital.
He had burns to almost all of his body.
Firefighters were alerted to the incident and quickly brought the blaze under control.
The fire appeared to have started in the front of the home, with talk that it may have involved a burning mattress.
The late man's family was notified of the incident a short time after it occurred.
The cause remains unclear, but Detective Chief Inspector Mick Stoltenberg said at this stage, nobody else was being sought over the blaze.
"In any sort of matter, you don't want to shut the investigation off too soon," he said.
"At this point in time, until we get a cause, everything's suspicious."
While nobody was being sought over the fire, police believe a large number of people may have spotted the injured man on Mate Street.
"I would imagine that crossing out of Mate Street at 4pm in the afternoon, there may well be people who would have seen that gentleman suffering his injuries," Detective Chief Inspector Stoltenberg said.
"If they're out there, if they could come forward, that would be great.
"If they have dashcam footage in their car, that would be fantastic for investigators.
"At this point in time we only have the man from Glenly Street (as a witness).
"He's very traumatised.
"He was an acquaintance of his, quite shocked."
The Glenly Street resident's home was also examined by police.
Fingerprinting dust could be seen on the front door.
EARLIER: An investigation is under way after a fatal house fire in North Albury on Thursday.
Police have been told a 39-year-old man arrived at a friend's home in Glenly Street about 4pm, seeking help for extensive burns.
"The friend flagged down a passing ambulance and the man was taken to Albury Base Hospital," a NSW Police statement said.
"A short time later, officers from Fire and Rescue NSW were called to a house fire in Mate Street, North Albury.
"They were able to contain the blaze to the single building; however, the home sustained substantial damage."
IN OTHER NEWS:
Officers from Murray River Police District have established crime scenes at both homes in Mate and Glenly streets.
Forensic officers remain at the Mate Street crime scene. They have been examining the home for several hours.
Police said the injured man died in hospital about 10pm.
The damage appeared to have been at the front of the home.
An evidence marker could be seen near a broken window, with the blaze appearing to start at the front of the brick home.