Donald Trump and Hillary Clinton have won their parties' presidential primary contests in New York - one of the campaign's biggest prizes so far.
Mr Trump earned a decisive, crushing victory in his home state capturing the lion's share of Republican delegates and extending his lead over rivals Ted Cruz and John Kasich.
Former New York senator Hillary Clinton won the Democratic primary to end a string of victories by Vermont senator Bernie Sanders, who attracted tens of thousands of supporters to rallies in the state of his birth.
The national front-runners are now both closer to securing their party nominations.
The voting in New York was marred by irregularities, including more than 125,000 people missing from New York City voter rolls.
New York City comptroller Scott Stringer has ordered an audit of the city elections board after it confirmed the names had been removed.
'We're really rocking' says Donald Trump after scoring decisive win in New York to stretch lead over rival Ted Cruzhttps://t.co/0GmVKD3F0B
— RTÉ News (@rtenews) April 20, 2016
At his victory rally in Manhattan last night, Mr Trump described his landslide win as "incredible".
He won 60% of the vote taking most of the 95 delegates on offer.
The billionaire businessman won all counties in New York State except Manhattan, where Mr Kasich topped the poll. Mr Cruz failed to win any delegates.
It is mathematically possible for Trump to get enough votes to secure the nomination ahead of November's convention.
That is likely to depend on big wins in all remaining states and in the last contest of the primary season in California on 7 June.
An elated Hillary Clinton declares 'Victory is in sight' after New York primary successhttps://t.co/bh7mciPfmQ
— RTÉ News (@rtenews) April 20, 2016
For the Democratic party, Ms Clinton beat Mr Sanders by 16%, which was more than had been predicted in opinion polls.
At her rally, Ms Clinton said "victory was in sight".
Senator Sanders flew back to Vermont for a campaign think-in later today, telling reporters when he landed that he still saw a path to victory.
