North Korean leader Kim Jong Un, seen here on April 15, 2017. He has been very threatening - beyond a normal statement - and as I said they will be met with fire, fury and frankly power the likes of which the world has never seen before'.
One intelligence official said that the report itself was insignificant and not a sign that North Korea was preparing to test a missile or make any other provocation.
That approach paid off last weekend when the United Nations Security Council unanimously approved a resolution imposing unprecedentedly tough economic sanctions on North Korea. Overall, 28 percent of Americans favor sending U.S. troops to destroy North Korea's nuclear facilities and 40 percent favor conducting airstrikes against its nuclear production facilities, according to the Chicago Council on Global Affairs. North Korea has conducted five nuclear tests since 2006, with the most recent occurring September 9, 2016.
The sanctions followed Pyongyang's two tests of intercontinental ballistic missiles last month.
Pentagon identifies two USA troops killed in Afghanistan
They also claimed an earlier suicide bomber used a motorbike to attack a US convoy in the same area, killing 11 USA troops. The incident occurred in Qarabagh district outside the capital, Kabul .
The Pentagon statement came following Seoul's request to increase the cap on payloads to 1,000kg, voiced by South Korean President Moon Jae-in during a telephone conversation with Trump on Monday, South Korean Yonhap news agency reports.
The frightening claims were made in the Washington Post, citing a confidential assessment by the US Defense Intelligence Agency.
Trump tweeted early Tuesday "After many years of failure, countries are coming together to finally address the dangers posed by North Korea". Just two years ago, 55 percent of Americans listed North Korea as a critical threat facing the United States.
The warning comes after the North threatened to retaliate and take "physical" action against the US over the United Nations' adoption of new sanctions on Saturday.
Japan's Defense Ministry concluded in an annual white paper released Tuesday that "it is possible that North Korea has achieved the miniaturization of nuclear weapons and has developed nuclear warheads". It's frighteningly relevant now, as Trump levels threats against North Korea.