A 76-year-old woman died in a fire that broke out overnight at the "Topla Grizha" care home for the elderly in Varna.
Two other injured women were taken to the Naval Hospital in Varna.
The woman who died lived at the home.
The alarm was raised at about 3am on 13 October, and the fire service sent crews at once. The fire started in one of the rooms.
The cause of the fire and the circumstances are not yet clear. Officials are also working to establish what led to the woman's death. The Varna District Prosecutor's Office is leading the pre-trial investigation.
Fire and forensic medical experts will be appointed.