Gardai are investigating a death threat made against Fine Gael TD Regina Doherty which was issued after she became embroiled in a heated radio row with Sinn Fein leader Gerry Adams.
Following the debate on LMFM radio, Ms Doherty received a series of abusive messages via text message and social media from anonymous individuals.
One message warned that Ms Doherty's throat would be "slit" as a result of her comments made during the debate.
The prominent backbencher has spoken with her local superintendent and an investigation has been launched.
It's also understood she has been told to take precautions in relation to her personal safety.
Contacted today, Ms Doherty confirmed the threat and said she has been in touch with gardai.
A Sinn Fein spokesman said: "Sinn Féin condemns all threats to politicians. There can never be any justification for this type of behaviour."
Lucinda Creighton, leader of RENUA Ireland said: "There is growing tendency amongst the media, and even in the larger political parties to shy away from reminding people of Sinn Féin's past, instead focussing solely on their tax or economic policies."
"The reality is that that there is no other attack against a political party leader except Sinn Féin which could result in death threats being made against that person, and that's why it is so important that Gerry Adams and Sinn Féin lead from the front in condemning this threat."