The top USA intelligence official said on Sunday he would not be surprised if North Korea tested another missile, given that it had two tests in July, amid rising tensions between the two nations.
But appearing on ABC's This Week show, McMaster declined to rule out taking military action against the communist state to curb its nuclear programme.
Pompeo said "there's nothing imminent today", in response to a question about how anxious people should be over the escalating tensions. They have united the world with sanctions against North Korea, 15-0 vote.
"But make no mistake about it, the continuation, the increased chance that there will be a nuclear missile in Denver is a very serious threat and the administration is going to treat it as such". "No intelligence that would indicate we are in that place today".
Pressed on his "nothing imminent" statement, Pompeo said: "What I'm talking about is, I've heard folks talking about that we have been on the cusp of a nuclear war".
China is the North's biggest economic partner and source of aid, but says it alone can't compel its wayward ally to end its nuclear and missile programs.
The United States and South Korea remain technically still at war with North Korea after the 1950-53 Korean conflict ended with a truce, not a peace treaty.
At least 47 killed in Nepal floods
The Meteorological Forecasting Division has forecast moderate to heavy rains to continue across the country for the next few days. Electricity supply has been hit in most parts of eastern Nepal and telecom services are down in numerous affected districts.
But he stressed that there was also "a very determined diplomatic effort" under way to put pressure on North Korean leader Kim Jong-un.
"I don't think military action is imminent, but we're on a collision course with North Korea", Graham said on "Fox News Sunday".
In the past few months, multiple illegal North Korean ballistic-missile and ICBM tests-coupled with the most recent bellicose language from Pyongyang about striking the U.S., Guam, our allies and our interests in the Asia-Pacific region-have escalated tensions between North Korea and America to levels not experienced since the Korean War.
Pompeo declined to say how long it will be before North Korea could carry out such a nuclear attack on the USA mainland. And that's exactly the policy of the Trump administration.
The North then came out with a threat to lob four intermediate-range "Hwasong-12" missiles near Guam, a tiny US territory some 2,000 miles from the North's capital, Pyongyang.
President Trump has taken a harsher stance against North Korea than his predecessor, Barack Obama, while Pyongyang has carried on ignoring sanctions and UN Security Council rulings against its nuclear weapons program. "All those smart people who are criticizing his rhetoric and his policy, how well did you do?"
Information for this article was contributed by Andrew Harnik, Richard Lardner and Deb Riechmann of The Associated Press; and by Min Jeong Lee, Takashi Amano, Gao Yuan, Janet Ong, Reinie Booysen, Heejin Kim, Nafeesa Syeed and Kenneth Pringle of Bloomberg News.