Independent TD Michael Healy-Rae has condemned the "disgraceful behaviour" towards an intern from his office by members of a crowd who gathered outside Government Buildings yesterday.
He said the intern was on her first day from the US on a programme in Ireland to learn about Irish politics, when some people started "shouting abuse" and carrying out "outrageous behaviour".
"That 20-year-old girl was shoved, she was pushed, her mobile phone was stolen," he said.
Speaking on RTÉ's Morning Ireland, Mr Healy-Rae said that awful language was directed towards journalists, Dáil staff and others, who were subjected to "vile abuse".
A review of security at Leinster House will get under way today after TDs and staff were unable to leave the grounds of the national parliament for several hours yesterday afternoon.
Mr Healy-Rae said he understands people who come to Leinster House to protest and have their voices heard, but that yesterday those who attended came on a "completely different" agenda.
"Everybody is saying, what exactly were they protesting about? All I saw was people jumping up and down using horrible language that should not be used in any form of protest and there was no coherent message from them," he said.
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"It was like a gathering of people who just wanted to insult."
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He said the Government is not sure what their message was, as they did not make that effective.
All those who were involved did, he said, was "let their families down".
He said everyone has the right to come and go to work, and it is not right to obstruct people going about their business.
"There are people, who it is their job to turn up to the Dáil every day to do their functions, and indeed the reporters and hold us all to account, but all of that was disrupted," he said.
"Whatever the outcome of it will be, it can never ever be allowed to happen again in that way," he added.
