The Army Bomb Disposal Unit is carrying out an assessment of the scene at the Department of Health.
A suspicious package was delivered to the building on Baggot Street Lower in Dublin, and all staff were evacuated at lunchtime.
The Defence Forces says its team from Cathal Brugha Street is attending the scene, after receiving a call from gardai at 1.30pm.
Firefighters from Donnybrook and Tara St fire stations are currently attending an incident on Lower Baggot Street. Our HazMat unit is attending as a precaution. Traffic restrictions in place #Dublin #fire #traffic @DCCTraffic @aaroadwatch pic.twitter.com/IFdHrwDxdy
— Dublin Fire Brigade (@DubFireBrigade) August 25, 2020
Gardai and the fire service are also at the scene.
