40 people have been killed in shootings at two mosques in the New Zealand city of Christchurch.
20 people remain seriously injured in the attacks.
Three men and one woman are in custody, but police have warned there could be other attackers at large.
At a news conference, Police Commissioner Mike Bush said a number of improvised explosive devices were also found attached to vehicles in the city.
British MPs have voted to request a delay to the Brexit process until the end of June at the earliest.
It comes as UK Prime Minister Theresa May prepares to hold a third meaningful vote on the Brexit Withdrawal Agreement as soon as next week.
Last night’s House of Commons vote paved the way for a one-off delay to the Brexit process until June 30th – provided the House passes the deal next week.
If the deal is again rejected, the extension would have to be significantly longer and would require the UK to take part in European elections.
The Taoiseach is urging US politicians to open up new forms of legal immigration for Irish people.
At the White House Shamrock ceremony last night, Leo Varadkar said the US shouldn't lose sight of the things that have made America great already, including freedoms and civil rights.
Today he travels to Chicago to meet with Irish emigrant support groups, and will attend a St Patrick’s Day dinner with the Irish Fellowship Club of Chicago.
At his meeting with US President Donald Trump last night, the Taoiseach said both leaders agree on the issue of immigration for Irish people.
Students across the country are set to take part in school strikes today demanding that immediate action is taken on climate change.
Marches will be held in Dublin and Cork, while there will also be local strikes held at school gates nationwide.
Environment Minister Richard Bruton has welcomed the action and says an 'all of government plan' to make Ireland a leader in responding to climate change will be published soon.
Ireland's action on climate change has been ranked the worst in the EU.
The suicide rate within the Traveller community is six times higher than that of the wider society in Ireland.
The statistic has been released to mark the launch of a network lobbying for improved mental health services for Travellers.
The National Traveller Mental Health Network which will be launched later today at NUI Galway also aims to share information on best practice for addressing mental health within the community.
Speaking ahead of this afternoon's launch, Thomas McCann founding member of the Network says there's a gap in mental health services for Travellers