Police were unwilling to confirm if the suspect was a man or a woman.
Svante Melin at Södermanland police confirmed to TT on Saturday afternoon that the suspect is in custody and will be examined by a medical examiner later today.
The suspect, who has no previous criminal record was collected from their home in central Eskilstuna, near the suburb of Nyfors were the murdered man was found.
The dead man lived alone in his apartment in the town, south-west of Stockholm. He was found dead on Friday evening by a female acquaintance, who has a key to the residence.
When the man’s body was subjected to medical examination suspicions were aroused over foul play, Melin confirmed.
It is not however yet been confirmed exactly when the man died.
“But probably on one of the last few days,” Melin said.
The 62-year-old man’s body will be transported to the medical examiner’s office in Solna for tests and an autopsy on Monday or Tuesday.
Svante Melin confirmed that the 62-year-old is not previously known to police for any prior offence or criminal connection.