U.S. Secretary of State Rex Tillerson has asked China to exert more economic and diplomatic pressure on North Korea if Beijing wants to prevent further escalation in the region. The U.S. often sends powerful warplanes in times of heightened animosities with North Korea. "What you're seeing, I think, is the American people's frustration with a regime that provokes and provokes and provokes and basically plays outside the rules, plays fast and loose with the truth", he said.
"I am very glad that President Trump has made the resolution of North Korea's nuclear issue the top of his priority list on his foreign affairs agenda", he said, according to the report.
"There should at least be a form for them to fill out that says, 'If I go to North Korea, I understand I am taking great risk and I do not hold the American government responsible".
Even as intelligence indicated North Korea was continuing to move materials to the nuke test site, Trump tweeted: "While I greatly appreciate the efforts of President Xi & China to help with North Korea, it has not worked out".
Otto Warmbier, the USA college student imprisoned for more than a year by North Korea and sent back home in a coma that proved fatal, will be buried Thursday in his home state of Ohio. South Korea's Defense Ministry said the bombers engaged in routine exercises with its fighter jets aimed at deterring the North.
North Korea is relentlessly pursuing its goal of building a nuclear bomb that can be mounted on an intercontinental ballistic missile.
More whiffs for the scrambling Democrats
A dozen or so House Democrats want Minority Leader Nancy Pelosi to go after a dispiriting loss in a House election in Georgia. But she chose to stick around after Trump defied expectations of most members of Congress and won the Electoral College.
Tillerson said countries around the world were cracking down on activities North Korea uses to fund its weapons programmes, "and we hope China will do their part as well".
Beyond demanding a full account of what happened to Warmbier, the USA has few options to respond - although there are three other US citizens being detained in the country, and any action has to weigh their safety and concerns of a backlash against them.
Trump - who frequently denounced China on the campaign trail - has turned to Beijing to help pressure its ally North Korea, prompting concern among Asian partners that America might go easy on the South China Sea territorial dispute.
Divisive trade issues will be dealt with at a later date.
South Korean President Moon Jae-in talks on phone with Japanese Prime Minister Shinzo Abe at the presidential Blue House in Seoul, South Korea, May 11, 2017. Three other Americans are now being held captive, and according to the Associated Press, the arrest of one of them, teacher Tony Kim, caused Secretary of State Rex Tillerson to explore the potential of a travel ban in March.
But like his predecessors, Trump is gradually learning that for all its talk about cooperation, China is deeply reluctant to take any measures that could seriously destabilise the North Korean government, for fear the country might collapse or be absorbed by the South. That would only slightly add to the North's isolation and loss of revenue. The talks, also involving the two Koreas, China and the United States, have been stalled since 2008.