SINN Féin will today meet with Prime Minister David Cameron in Downing Street to discuss the political process in Northern Ireland for the first time.
Northern Ireland First Minister Peter Robinson and Deputy First Minister Martin McGuinness will also hold talks with the Prime Minister.
Among discussions on the agenda will be a review of the year-old Northern Ireland Economic Pact.
Parades, the past and flags will also be discussed and are currently the subject of another round of debate between local parties in the North following the collapse of talks chaired by US diplomat Dr Richard Haass over Christmas.
Although the Prime Minister has met with individual Sinn Féin politicians before, this is the first time that he will welcome a party delegation to Downing Street.
Speaking ahead of Wednesday's talks, Sinn Féin party leader Gerry Adams said: "This will be the first meeting that the British Prime Minister David Cameron will have held with the Sinn Féin leadership since he took office in 2010.
"This is deplorable and evidence of the British government's failure thus far to properly engage with the process of change in the north.
"Key to making progress is a positive engagement by the Irish and British governments on issues which are their direct responsibility."
The Sinn Féin delegation will also meet Labour leader Ed Miliband
