Dublin Fire Brigade attended the scene yesterday afternoon.
At approximately 4:30pm yesterday afternoon, a number of people had to be evacuated from a building on Dublin City's Capel Street, when a fire broke out.
Emergency services brought the fire under control, and they then found a body inside a residential unit in the building.
There is no further information about the deceased at this time.
Their body was removed to the Dublin City Mortuary, where a post mortem exam will be carried out today.
The scene of the blaze has been preserved for a technical exam to establish how the fire started.