A Bulgarian couple, their two grown-up sons and grandmother have been found dead in a Sofia apartment with multiple knife and gunshot wounds, police said on Friday.
Media reports said one of the sons, aged 27 and suffering from a psychological disorder, had killed the other four before committing suicide.
Police refused to confirm the reports before post-mortem examinations, only saying that an initial investigation had not found any trace of other people in the apartment at the time of the crime.
The bloodied body of the 79-year-old grandmother was found first by the family's worried neighbours, who had a key to the flat. Police later found the corpses of her daughter and son-in-law, aged 54 and 55, and their two sons, 27 and 21.
Sofia police chief Valery Yordanov said that a knife and the father's legally owned gun were found at the scene. - Sapa-AFP