Tánaiste Leo Varadkar has said he has contacted gardaí through his solicitors following a complaint made against him for the leaking of a document relating to a GP contract.
Gardaí said they are currently assessing whether to proceed with an investigation.
Last November, Mr Varadkar told the Dáil he gave a copy of an agreement between the State and the Irish Medical Organisation to Maitiú Ó Túathail, the then president of a rival GP organisation, the National Association of General Practitioners.
Mr Varadkar apologised at the time and said he was acting in the interest of getting the contract passed and getting buy-in from all GPs.
In a statement this evening, Mr Varadkar said the complaint was made against him in November.
He added: "The gardaí have to do their job and investigate that complaint. I would expect nothing else.
"They have not been in contact with me about the matter, but I have, through my solicitors, made contact with them and I have offered to meet with them, answer any questions they may have, and provide a full statement on the matter.
"The facts are no different to those set out by me in the Dáil last November.
"My legal advice is that I have committed no offence. I look forward to the matter being concluded."
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RTÉ News has established that Minister for Higher Education Simon Harris, who was minister for health at the time, has voluntarily given a written statement to gardaí on the matter.
This was done as part of the garda efforts to establish if any further action is required. There is no suggestion of any wrongdoing on the part of Mr Harris.
A garda spokesperson said it "has received correspondence which is being assessed to determine what, if any, garda action is required".
Sinn Féin's Pearse Doherty said the confirmation by gardaí "highlights the seriousness of the issue".
When asked about the issue, Minister for Health Stephen Donnelly said he was unaware that gardaí were looking into it and the first he heard about it was through the media.
Speaking on RTÉ's This Week programme, Mr Donnelly said that he had not been contacted by gardaí in relation to it.
Asked if anyone in the Department of Health had come forward with any concerns, Mr Donnelly said there had not been and he was satisfied that everything at the moment is above board.