A search is continuing in North County Dublin today.
The Children's Ombudsman is expressing shock a child who was known to Tusla could have disappeared four years ago.
Niall Muldoon says he's extremely concerned the response from the Government and Tusla so far, to the disappearance and possible death of the boy in Donabate, is a referral to the National Review Panel.
A search is expected to continue today and into the weekend for the remains of the missing child at a field off the Portrane Road in north county Dublin.
Aontú Leader and Meath West TD Peadar Tóibín says it's hard to see why checks weren't carried out:
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