The Defence Forces have confirmed that a suspicious device found at the constituency office of Sinn Féin TD Mary Lou McDonald earlier today was a hoax.
The alarm was raised at the building on Dublin's North Strand this morning by a staff member at the office of the Dublin Central TD.
The suspect device was removed by bomb disposal experts.
Subsequent testing has confirmed it did not contain any explosive.
Sinn Féin has condemned the incident, branding it "pathetic and futile".