United Nations Ambassador Nikki HaleyNikki HaleyHaley has 'positive' meeting with Trump Haley hits the stump in South Carolina Ex-chief of staff says Trump won't run because he can't be seen as 'loser' MORE on Tuesday warned that the United States could look to broaden sanctions regarding North Korea to include countries that provide aid to the isolated nation.
"You either support North Korea or you support us, because that's what it comes down to," Haley said at a news conference.
"We want to look at the current sanctions in place, and we want to look at strengthening the sanctions. And the United States is not past looking at third-country entities who are helping North Korea and putting sanctions on them."
The threat to expand sanctions is the latest response from the U.S. following a ballistic missile test by Pyongyang over the weekend.
The missile, which reached an altitude of roughly 1,300 miles and landed in the sea between Japan and the Korean Peninsula more than 430 miles from its launch site, signals that North Korea's weapons program may be advancing faster than previously believed.
The U.S. responded to the launch on Saturday by reaffirming its commitment to tightening sanctions against the North and urging the international community to do the same.
President Trump has long touted his plan to pressure China to do more to rein in North Korea. And so far, Beijing has amped up talk of imposing new sanctions or other restrictions.
But Haley said on Tuesday that other countries have taken more active roles in aiding Pyongyang amid tepid relations with China.
"I will tell you that if you are a country that is supplying or supporting North Korea, we will call you out on it. We will make sure that everyone knows who you are, and we will target those sanctions toward you as well."