Three people have been arrested in connection with a number of criminal damage incidents at Castletown House in Co Kildare in recent weeks.
The three – a man in his 30s and two juveniles – were arrested this morning, following a search operation at a number of properties in the county.
The estimated cost of the damage was in the region of €400,000.
The three are being held at garda stations in Kildare.
Over the May bank holiday weekend, damage was caused to vehicles and facilities used by the Office of Public Works to access the site.
Four vehicles were overturned, a construction vehicle was driven into a river, and wires on four CCTV units were cut on the lands of Donaghcumper House
Castletown House and estate has been at the centre of a 19-month-long row between locals and the OPW about access to the heritage site.
In a statement following the incident, Minister of State with responsibility for the Office of Public Works, Kevin 'Boxer' Moran, described it as "shocking and unacceptable".
"This criminal damage to State property owned and managed by the OPW is shocking and unacceptable. A garda investigation is under way.
The OPW said it already has significant security infrastructure in place at Donaghcumper and has added to this on the advice of An Garda Síochána.
