A female teacher is suspected of the murder of her husband, reported the Finnish language tabloid Iltalehti on Tuesday.
According to the newspaper, the woman was arrested last week on suspicion of the murder.
The suspected homicide took place during midsummer under unclear circumstances.
According to the Iltalehti report, the man drank a poisoned drink in a cabin and later died in hospital.
According to the police, the investigation is still in its infancy.
The language teacher had filed for divorce with her older husband last year.
The news agency STT confirmed from the Kanta-Häme District Court that the 1969-born was arrested on suspicion of murder on January 23.