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.
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