One day after the fire in an apartment building in Apolda, Thuringia, two more dead were discovered on Monday.
The death toll rose to four, a police spokesman said on Monday.
The badly charred corpses were discovered in the attic at noon during an assessment by a fire investigator.
Firefighters discovered a fatality in the attic on Sunday.
All three bodies would now be recovered by turntable ladder.
A 53-year-old man also died in the fire early Sunday morning after he was fatally injured when he jumped out of a window in the burning house.
On Monday, a structural engineer released the house for investigators.
The police also searched the scene of the fire with a drone.
She's investigating arson, the spokesman said.
There are relevant instructions.
But other causes, such as a technical defect, cannot be ruled out.
According to the current status, 22 people were injured in the fire, including two firefighters.
According to information from Sunday, the fire brigade saved 30 people.
The police spokesman said there were more people in the house than were reported there.
Representatives of the city and police wanted to inform about the situation in a press conference in the early afternoon, and State Interior Minister Georg Maier (SPD) is also expected in Apolda.