The alarm about the fire came just before 4 o'clock at night.
Staff from the stations in Hässleholm, Tyringe and Perstorp drove to the site.
- When we arrived, it was completely overheated, says external commander Jan-Olov Fröjd at the rescue service in Hässleholm.
Serious injuries
Five people had left the house.
Three of them were taken by ambulance to hospital.
According to Region Skåne, a woman in her 50s has serious injuries.
According to the police, pets were left inside the building.
The fire had started in the house on a farm.
The rescue service focused its efforts on rescuing the adjacent garage and stable building, which succeeded.
The dwelling house had to burn to the ground.
At 6.30 the remaining extinguishing and control remained.
Blocked off
The police have initiated a preliminary investigation into the arson to investigate the cause of the fire.
Technicians will inspect the site as soon as possible.
- It will be blocked off at the site during the day, says Jan-Olov Fröjd.