Donald Trump has posted a big win in the GOP caucus on the Northern Mariana Islands.

The party says the billionaire businessman won almost 73 percent of the vote in Tuesday's caucus. He will get all nine delegates from the U.S. territory.

Texas Sen. Ted Cruz came in second with 24 percent of the vote, while Ohio Gov. John Kasich and Florida Sen. Marco Rubio finished a distant third and fourth, respectively.

Both the Republican and Democratic parties hold nominating contests in U.S. territories. The residents, however, cannot vote in the general election. The party said a total of 471 people voted.

Trump leads the race for delegates with 469. Cruz has 370, Rubio has 163, and Kasich has 63.

It takes 1,237 delegates to win the GOP nomination.