US Air Force B-1B Lancer bombers flew in worldwide airspace off North Korea's eastern coast in the latest show of force against the isolated country, officials said, amid an escalating war of words between Pyongyang and Washington.
The Pentagon said the operation was taking place at the farthest point north of the Demilitarized Zone, which separates North and South Korea, that any us fighter or bomber aircraft has flown this century.
Ms White added: "we are prepared to use the full range of military capabilities to defend the USA homeland and our allies".
The B-1B Lancer bombers were escorted by fighter jets as they flew in worldwide airspace.
U.S. Pacific Command would not be more specific about many years it had been since U.S. bombers and fighters had flown that far north of the DMZ, but a spokesman, Navy Cmdr.
Earlier on Saturday an quake was detected near the site where North Korea has conducted numerous nuclear tests, sparking fears of a new detonation.
Kim in turn called Trump a "frightened dog" and a "mentally deranged US dotard".
"This event occurred in the area of the previous North Korean Nuclear tests", the United States Geological Survey said on its web site.
"We do not have any intention at all to use or threaten to use nuclear weapons against the countries that do not join in the U.S. military actions against (the Asian nation)", North Korean Foreign Minister Ri Yong-ho told the UN General Assembly on Saturday.
All North Korea's nuclear tests registered as earthquakes of magnitude 4.3 or above.
"It is not clear Kim Jong-un is receiving that message".
"None other than Trump himself is on a suicide mission", Ri said in broad denunciation of Trump that brought applause from the North Korean delegation.
On Thursday, Mr Trump announced more economic sanctions against the impoverished and isolated country, targeting foreign companies that deal with the North.
At the United Nations on Tuesday, President Donald Trump retaliated with equal aggression saying that he would "totally destroy" North Korea if the U.S. was forced to defend itself or its allies. The North Korean leader said Trump's speech convinced him he's leading his nation down the right path.
Labor leader Bill Shorten will meet with South Korea's prime minister during a four-day trip which will also include security talks in Japan.