"North Korea can build nukes and ICBMs, but claim they are too poor to pay for foreign travel costs," a Korea expert said.
A Chinese Foreign Ministry official likened U.S. complaints about China's militarization of the South China Sea to "a thief crying 'stop thief.'"
Trump cancelled his summit with Kim Jong Un but later suggested it could still go ahead.
Russia's Sergei Lavrov has accepted the invitation of North Korea's foreign minister.
An official newspaper blamed U.S. "hack media on the payroll of power" for insinuating that North Korea was pursuing talks to get an economic handout.
Donald Trump confirms talks are still ongoing for potentially historic meeting with Kim Jong Un.
Kim Jong Un "has created sort of a cushion for failure, that if the U.S. backs away, the Chinese and Russians will be behind him," 38 North's Joel Wit said.
Saying the cancellation was "unexpected," Pyongyang remains willing to meet the U.S. "any time," the foreign ministry statement said.
North Korea threatened a "nuclear-to-nuclear showdown" after Vice President Mike Pence suggested Kim Jong Un could be overthrown.
President Donald Trump's decision came shortly after a top North Korean diplomat insulted the vice president, but there may be more at play.
Fox News Host and friend of President Donald Trump Pete Hegseth said North Korean dictator Kim Jong Un "probably doesn't love being the guy who has to murder his people all day long," during a Wednesday interview on Fox & Friends, the president's favorite morning show.
President Donald Trump is now trying to manage expectations about the meeting with North Korean leader Kim Jong Un that is scheduled to take place in Singapore on June 12.
North Korea warned that "dialogue and saber rattling can never go together" as President Donald Trump receives South Korean President Moon Jae-in.
"I think it would be a worthy and a momentous accomplishment that no previous president has been able to realize," Carter said.
China revealed that it feels endangered. Washington can acknowledge China's importance by seeking its help to get Kim Jong Un to the negotiating table.
North Korea has threatened to cancel the June summit with the U.S.
He also contradicted his national security adviser John Bolton.
North Korea is growing increasingly wary of the U.S.'s intentions ahead of a historic meeting between Kim Jong Un and Donald Trump.