The sudden death of a mid Wales woman is being investigated by Dyfed-Powys Police. The body of the 35-year-old woman was discovered at her Llandrindod Wells home at 1130GMT on Saturday.
Police are keeping an open mind on the cause of death.
Detective Inspector Steve Hughson said: "The inquiry at present is focused on the possibility that the death of this lady is connected to heroin misue," he added.
Anyone with information is asked to contact Llandrindod Wells police on 01597 822227 or Crimestoppers on 0800555111