Gardai have confirmed that a fake bomb was found at the site of the National Children's Hospital in Dublin earlier this week.
Officers were alerted to a suspicious device at the premises on James' Street just before midday on Monday.
The area was cordoned off and bomb disposal experts from the Army were called in.
The device was deemed non-viable and the scene was declared safe just after 5pm.
It follows more than a dozen arson incidents at the construction site over the summer, in what is believed to a campaign aimed at disrupting work on the site.
Young Voices of Wicklow Unite at Comhairle na nÓg Youth Summit
Local TD Slams Government Hypocrisy In Trying To Induce Irish To Return Home
Man Appears in Court Over Alleged False Social Media Post About Asylum Seeker
Teacher Shortages Hit Wicklow Hard As Special Schools & DEIS Schools Disproportionately Affected
Dramatic Late Wonder Strike Sends Bray Wanderers Past Treaty United Into Play-Off Final