Both locations have been preserved for forensic examination.
Gardaí are investigating the discovery of two bodies at properties in Ballyfermot and Clondalkin.
Gardaí and emergency services were called to the residence in Cherry Orchard, Ballyfermot this morning at approximately 8:30am.
A body of a male - aged in his 40s - was discovered dead at the scene.
In follow up enquiries the body of a male child was discovered at a domestic residence in Clondalkin.
Both locations have been preserved for forensic examination.
The Coroner has been notified.
The body of the male adult has been removed from the scene to the city morgue, while the body of the male child remains at the scene.
Post-mortem examinations will be carried out at a later time.
Investigations are ongoing.
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