SOMERSET, N.J. -- America's ambassador to the United Nations is raising the prospect of U.S. military action against North Korea if the North continues its missile and nuclear tests.
Nikki Haley said North Korea will be "destroyed" if it continues with what she describes as "reckless" behavior.
Haley told CNN's "State of the Union" that the U.N. Security Council has basically exhausted its diplomatic options for dealing with North Korea.
If diplomacy fails, she said Defense Secretary Jim Mattis "will take care of it."
North Korea will be high on the agenda during the U.N. General Assembly session in New York this coming week.
Haley said President Donald Trump's "fire and fury" warning to North Korea wasn't an empty threat. She said war is undesirable but added that "something has got to be done" if North Korea continues to threaten the U.S. and its allies.
President Donald Trump said that he and South Korean President Moon Jae-in have discussed North Korea in their latest call.
And Trump tweeted that he's asked Moon about "Rocket Man" -- an apparent reference to North Korean leader Kim Jong Un.
North Korea has launched a trio of missiles in recent weeks and tested a bomb that is its most powerful to date.
Trump also said that long gas lines are forming in North Korea, calling it "too bad." New U.N. sanctions cut oil exports to North Korea.
The White House said that Trump and Moon are committed to continuing to take steps to strengthen deterrence and defense capabilities, and maximize economic and diplomatic pressure on North Korea. They plan to meet this week at the U.N. General Assembly.