The UK has officially voted to leave the European Union in an historic referendum, despite Northern Ireland, Scotland and London voting to remain.
All 382 declarations are now in and the final result shows Leave won with 51.9% to Remain’s 48.1%.
Electoral Commission confirmed the leave victory just after 7.20am on Friday morning following the overnight count.
As a result of the Leave vote, the pound has crashed to its lowest level in 30 years amid warnings there is worse to come.
Ukip leader Nigel Farage said 23 June should "go down in history as our independence day".
David Cameron - whose future as Prime Minister is now in doubt – is due to make an address to the country.
Fifty-six per cent of votes cast in Northern Ireland were to remain, while 44% voted to leave the EU.
The ballots from Northern Ireland's polling stations were counted at eight count centres with the final Northern Ireland declaration announced shortly before 5am at the Titanic Exhibition Centre in Belfast.
Sinn Féin has said the result has means there is a case for a border poll, claiming the British government has “forfeited any mandate to represent economic or political interests of people in N Ireland”.
It is uncertain what will happen at the Irish border now the UK has voted to leave the EU.
A spokesperson for the Irish government said a vote for Brexit has “very significant implications".
Taoiseach Enda Kenny will also be making a statement following a meeting with ministers to reflect on the result.