Emergency services said they found two bodies inside the large house after they were called out to the property in Kågeröd in Skåne at around 9pm.
Jimmy Modin, a communications officer, told the TT news agency: “They were pronounced dead on the spot and have yet to be idenfitied.”
According to the newswire, neighbours raised the alarm after spotting flames and smoke bursting out of a window.
Emergency response teams from three local municipalities took part in the operation to put out the fire, which destroyed the building.
Emergency services at the scene. Photo: Johan Nilsson
The blaze also damaged a neighbouring property.
“It is filled with smoke, but there is no fire damage,” Lennart Linderos, a firefighter, told regional newspaper Sydsvenskan.
Police said the cause of the fire was still being investigated.
Situated on the edge of a forest, Kågeröd village is home to just 1,500 residents.
It is just a kilometre away from Knutstorp, one of Sweden’s most famous race tracks.