US Republican presidential candidate Donald Trump and Democratic rival Hillary Clinton have come out as major winners in five northeastern US states primaries, according to US media projections.
The early results were announced after the polls closed in five US states of Connecticut, Delaware, Maryland, Pennsylvania and Rhode Island on Tuesday.
Maintaining his commanding lead on fellow Republicans Ted Cruz and John Kasich, Trump gained victory in the five states with Pennsylvania at 58 percent, Connecticut at 65 percent, Maryland at 61 percent, Delaware at 60 percent and Rhode Island 66 percent.
"I consider myself the presumptive nominee, absolutely," Trump said. He added that Ted Cruz and John Kasich should get out of the race so they can "unify the party."
Clinton won Maryland (66 percent), Pennsylvania (57 percent), and Delaware (59 percent) and Connecticut (50.1 percent) while Vermont Democratic Senator Bernie Sanders won the Rhode Island vote (55 percent).
"Tonight's wins belong to every organizer, volunteer, donor, and supporter who've built this campaign. Thank you Delaware, Thank you Pennsylvania, Thank you Maryland..." said Clinton speaking form Philadelphia. "Let's go forward, let's win the nomination, and in July let's return as a unified party."
Many of Sanders’s supporters say they will never vote for Clinton in a general election and hope Sanders will find a way to cut into her lead.
To date, Clinton has garnered 1,578 delegates based on primaries and caucuses, compared to 1,232 for Sanders.
Indiana, which votes next week on May 3, will be the next big contest, with 57 delegates at stake.