A viable pipe bomb fell into a front garden of a property in Finglas by mistake after it was delivered by a drone.
The incident happened at around 9pm on Sunday evening when the bomb was sent to target a gang member who is at the centre of a new gangland feud.
The target of the drone pipe-bomb attack is also suspected of being involved in a shooting incident over the weekend in Finglas in which shots were discharged but no one was injured.
It is the first time gardaí have seen a drone used for such as purpose.
There are now fears of yet more revenge attacks and the target of the drone pipe-bomb attack is now understood to be in hiding.