A family jolted awake by a loud noise were shocked to find a dead foreigner lying across a sofa surrounded by debris from a hole in their roof early on Friday morning in Bangkok.
The man was later identified as a Swedish national about 30 years old.
He was believed to have fallen onto the two-storey house from an adjoining 8-storey condominium building in Soi Phahol Yothin 3 in Sam Sen area, said Pol Capt Somporn Chunun, a deputy chief investigator for Phaya Thai district police. The incident was reported around 3.30am.
The dead man was wearing only white and red shorts. There was a large hole in the roof above his body. Bits of the broken ceiling and roof tiles were scattered over the room.
The houseowner said the family were all asleep, and suddenly jolted awake by a loud bang. Initially they thought a car might have hit their house, Thai media reported.
When they went to look they found blood seeping through the ceiling of the ground floor. They immediately checked upstairs and found a dead stranger partly on the sofa in a bedroom that was unoccupied at the time.
A security guard at the Silk Sanampao condominium later told police he often saw the man leave the building on a mountain bicycle. The foreigner lived there alone in a room. He was friendly and often greeted him in Thai, the guard said.
Police checked his room on the 8th floor and found a letter and medication that doctors said was used to treat mental problems. There were no signs of a struggle in the room.
Police were investigating and the man's relatives were being informed.