"Conservative opposition party member Kim Jae-kyung told The Associated Press, "'Approval' is a strong and insulting word meant to say that we are progressing too fast with the North without seeking consensus with the United States". Last month's third summit in Pyongyang was partly aimed at salvaging faltering nuclear talks between the North and the United States.
The Kyunghyang Shinmun, without quoting a source, said North Korea has reacted positively to the offer, adding that Japan appears to be considering a "resort" other than Tokyo for the location of such a summit.
North Korean leader Kim Jong Un has invited Pope Francis to visit, saying he would be "ardently welcomed", South Korea's presidency said on Tuesday, adding it would pass on Pyongyang's message to the Vatican.
He has encouraged United States allies to maintain sanctions on North Korea until it denuclearises as part of his administration's "maximum pressure" campaign against Pyongyang.
Trump responded saying, "They won't do it without our approval".
Tensions between North Korea and China, long-standing allies, have increased in recent years as China endorsed and implemented U.N. Security Council sanctions that squeezed the North Korean economy.
By Thursday, the South Korean government had backtracked.
Currently, tens of thousands of people are being detained in North Korean in labor camps for their religious beliefs and defection.
Was Saudi journalist Jamal Khashoggi a victim of Middle East rivalry?
Nour said he had lodged a complaint over the broadcast with the Attorney General's office, but no action has yet been taken. I received an answer that further fuelled my fears: Jamal had already left, they told me, possibly without my noticing.
While Washington holds a veto on the UN Security Council - meaning it can prevent motions to alter worldwide sanctions - it has no power over Seoul's policies, which include a range of bilateral sanctions against North Korea.
The Trump administration maintains it's made good progress on getting North Korea to denuclearize despite no verifiable actions towards this taking place.
While some in the U.S. administration have indicated that denuclearization could be completed within the lifespan of the Trump administration, some experts say it could take more than a decade - assuming it is faithfully implemented, which many doubt.
The denuclearization process, which looked so promising when Kim and Trump met in Singapore in June, is now looking stillborn.
During Moon's visit to North Korea last month, he and Kim agreed to normalize operations at the Kaesong factory park and resume joint tours to North Korea when possible, voicing optimism that global sanctions could end and allow such projects. "I think that North Korea is ready to open up, renounce nuclear weapons and build a new country", he said. The decision had also deprived Kaesong residents of what had been a steady supply of water and electricity.
"We can see that sport is being used as an extension of politics - it is an important political tool that is being used here by North Korea and Beijing", said James Floyd Downes, a lecturer in comparative politics at the Chinese University of Hong Kong.
The military agreement touched on some issues that require negotiations with the UN Command that oversees the demilitarized zone, such as disarming soldiers in the Joint Security Area in the border truce village of Panmunjom.