Sinn Féin has been called on to block progress on the North-South Interconnector in Northern Ireland.
Councillors in Monaghan clashed at their monthly meeting after Fine Gael members called on the party to bring a petition of concern to the Stormont Assembly.
Fianna Fáil's Seamus Coyle yesterday put forward a motion calling for the complete cessation of all works related to the North-South Interconnector.
The motion received the support of Councillors but led to a dispute over the role political parties have played in the process.
Fine Gael's David Maxwell said his party had failed to deliver on the undergrounding of the interconnector, with Fianna Fáil's PJ O'Hanlon saying his party had also failed.
They both called on Sinn Féin to bring a petition of concern to the Stormont Assembly, in a bid to block the northern section of the project.
A petition of concern would trigger a vote in the Assembly along community lines, meaning a majority of nationalists and unionists would be needed for the plans to proceed as set out.
However, Sinn Féin's Brian McKenna denied this would be possible under the agreement that returned power sharing last year.
He said Fine Gael and Fianna Fáil had "sat on their backsides" and were now trying to share the blame with Sinn Féin.
His party colleague Pat Treanor told the meeting that a petition of concern should always be a last resort in the Assembly and said a judicial review is ongoing in the north and nothing should be done until a judgement is delivered.