Brexit is a “game-changer” that could trigger a referendum on Irish unification within three years, the leader of the nationalist Sinn Finn party said Saturday.

There is growing speculation the PM could soon trigger Article 16 as ongoing talks between the EU and UK continue to fail to resolve problems such as the "sausage war". But Boris Johnson is being given fresh warnings about the impact of such action.

Glimmers of a potential Brexit deal have sparked dissent among Boris Johnson's allies, as the EU signals it may be open to another extension.

New British Prime Minister Boris Johnson’s big tour of the U.K. saw him booed by EU supporters in Wales and heckled by nationalists in Scotland. Northern Ireland’s fractious parties then told him that his Brexit plans were reopening old wounds.

Downing Street beats a hasty retreat after leak shows backsliding on Good Friday Agreement pledges. / There is near-unanimous political outrage in Ireland over a leaked British government plan to throw up a “buffer zone” with customs posts on the Irish border. Parties across the political spectrum branded it “out of the question”.

Sinn Fein was once disparaged as the political wing of the IRA. It’s now on course to be the biggest party in both the north and south of the island.

The party president accused Boris Johnson of being willing to break the Good Friday Agreement in pursuit of his Brexit goals

The political reality is that the United Kingdom is on a shoogly peg - and Brexit may be catalyst which breaks up the country.

Micheal Martin warned the move to override parts of the international deal could “destabilise” politics in Northern Ireland.

Sinn Féin accuses UK government of ‘Tory petulance’ claiming its leader Mary Lou McDonald had been excluded from the talks.

He was booed in Scotland. In Wales, a chicken submitted to his embrace, but politicians held him at arm’s length. And in Northern Ireland, there were rumblings of Irish unity — which could only come at the expense of its ties to the rest of the United Kingdom.

Simon Fraser argues Brexit complicates union of Britain and Northern Ireland.

It is "irresponsible" for the Irish government to say a border poll should not be held at the moment due to uncertainty about Brexit, Sinn Féin president Mary Lou McDonald has said.

President-elect spoke to Irish Taoiseach Micheál Martin as well as Boris Johnson on Tuesday.

“Those who championed Brexit and are crying salty tears now because of the consequences of Brexit need to accept that those are consequences of their decisions, their actions, and to not point the finger at others.”

Pro-British loyalist militants in Northern Ireland said on Friday there had been a "spectacular collective failure" to understand their anger over Brexit and other issues as there was some respite in street clashes following a week of riots.

Pro-British loyalist militants in Northern Ireland said on Friday there had been a "spectacular collective failure" to understand their anger over Brexit and other issues as there was some respite in street clashes following a week of riots.

Cold Feet star Jimmy Nesbitt will deliver the keynote address at the Ireland’s Future event in Dublin.

Mary Lou McDonald says there is a ‘growing demand’ for unity poll.

Prime Minister Rishi Sunak will meet EU chief Ursula Von Der Leyen and other European leaders at the Munich Security Conference following months of rows about the trading arrangements for Northern Ireland.

SDLP also promises to give other remain parties clear run against DUP in general election.

It was a tale of two protocols as talks between Northern Ireland's political parties and the Foreign Secretary James Cleverly broke down when nationalist parties withdrew.

As Brexit looms, nationalists in Northern Ireland are increasingly looking to Dublin for representation. Now, as Ben Kelly explains, political parties are responding in new, innovative ways.

The new first minister represents a party that does not acknowledge Northern Ireland's six counties as separate from the 26 counties in the Republic of Ireland. The historic moment has huge implications, David Blevins writes.

The Sinn Fein president said preparations for a referendum on Irish unity should begin.

Sinn Fein President Mary Lou McDonald said suspending the Northern Ireland Protocol could endanger the entire withdrawal agreement.

A bipartisan US congressional delegation is due to meet Irish premier Micheal Martin in Dublin.

Mary Lou McDonald has urged Northern Ireland's voters to back pro-remain candidates in the European election. / The Sinn Féin president called for her party's candidate, Martina Anderson, to be given the number one preference, before transferring to "pro-remain, progressive candidates".

Republican sentiment is rising over fears that Brexit will tank the economy, but Northern Ireland’s unionists won’t go quietly.