The Department for Health was evacuated shortly before midday today, with minister Simon Harris among those forced to leave the Baggot Street building.
The Irish Times and Irish Examiner newspapers said a suspect package had been sent to staff earlier today.
Police and firefighters are at the scene, which is located in the heart of Dublin’s capital city.
Dublin Fire Brigade said: “We are on scene at an incident in a premises on Baggot Street Lower. To help us deal with the incident the road has been closed. Expect traffic delays and disruption in the area.”
This is developing story, more to follow…