"These actions have affected the mutual trust between both sides, and has cast a shadow over the prospect of China-US relations, which completely go against the interest of our two peoples", Wang said.
Pompeo arrived in China from North Korea and said he wanted to inform Yi about his meeting with the North Korean leader. Korean Central News Agency (KCNA) reported that Kim had "warmly welcomed" Pompeo in Pyongyang and "spoke highly of him". The North Korean leader said progress is being made in implementing the goals of the first summit, and he "expressed his gratitude to President Trump for making honest effort to this end", KCNA said.
Pompeo said he and Kim had gotten "pretty close" to fixing the logistics for the summit but stressed that "sometimes that last inch is hard to close".
U.S. Secretary of State Mike Pompeo cited "fundamental disagreement" with China's foreign minister during a testy exchange in Beijing that highlighted rising tensions between the world's two largest economies.
Later Kim said, "It's a very nice day that promises a good future" for both countries.
A report in 2014 by the United Nations Human Rights Council concluded that hundreds of South Koreans, Japanese and other foreign nationals were kidnapped by North Korea after the end of the Korean War in 1953.
North Korea's vice foreign minister Choe Son Hui met with officials in Beijing on Saturday and is due to hold talks with Russian counterparts in Moscow followed by a trilateral meeting with China and Russia.
Pompeo did not have a scheduled meeting with Chinese President Xi Jinping, a fact that a senior U.S. State Department official on the trip said was not unusual, even though top U.S. officials often meet Chinese heads of state on visits.
"We are starting to see a first wave of actions we can take on all four pillars of the Singapore communique", said Biegun.
Pompeo and Wang openly disagreed over which side had called off a two-way security dialogue that had been planned in Beijing this month.
Sweden and Switzerland are once again being mentioned as possible locations, as was the case ahead of the June 12 US-North Korea summit in Singapore.
An official on Sunday's latest visit to Pyongyang with Pompeo said the trip was "better than the last time", but added: "It's going to be a long haul".
The Secretary of State added that South Korea has been an integral part of negotiations aimed at denuclearising North Korea, and he passed along Mr Trump's gratitude for the country's efforts.
He said that Kim invited inspectors to the Punggye-ri test facility, the site of all six of the regime's nuclear blasts. More recently, however, Abe has expressed interest in a face-to-face meeting with former worldwide pariah Kim. According to the former official, the North Korean diplomats told him that denuclearization for them refers to a process by which the USA also reduces its nuclear weapons, possibly worldwide.
"I know that during your visit, you also want to exchange views with the Chinese side on regional hotspot issues including the situation in the Korean Peninsula", Wang said.