At 03.30, the rescue service was alerted to an address in Ekholma, just west of Torp shopping center outside Uddevalla.
A detached small villa was on fire.
After a couple of hours of effort, the rescue service found at 06:00 that the fire had been extinguished.
"It's probably a total injury," says Anders Elfström, officer on duty at the rescue service.
Investigated as general negligence
A man was inside the house when the fire broke out.
He was taken to hospital by ambulance during the night, according to the rescue service.
Police were also alerted to the address during the night.
An area around the villa has been cordoned off and a technical investigation will be carried out on the site.
The incident is being investigated as general negligence.Keywords: