SINGAPORE -- U.S. Secretary of State Mike Pompeo warned Russia, China and other countries on Saturday against any violation of international sanctions on North Korea that could reduce pressure on the North to abandon its nuclear weapons.
Pompeo's comments came on the heels of a new United Nations report that found North Korea has not stopped its nuclear and missile programs and is violating UN sanctions, including through illicit ship-to-ship transfers of oil.
North Korea quickly shot back at Washington, with Foreign Minister Ri Yong Ho saying that recent moves by the U.S. are "alarming." Ri and Pompeo both made their comments at an Asian security forum in Singapore.
Speaking on the sidelines of the forum, Pompeo told reporters that the U.S. has new, credible reports that Russia is violating UN sanctions by allowing joint ventures with North Korean companies and issuing new permits for North Korean guest workers. He said Washington would take "very seriously" any violations, and called for them to be roundly condemned and reversed.
"If these reports prove accurate, and we have every reason to believe that they are, that would be in violation," Pompeo said, noting that the UN Security Council had voted unanimously in favour of the sanctions. "I want to remind every nation that has supported these resolutions that this is a serious issue and something we will discuss with Moscow."
"We expect the Russians and all countries to abide to the UN Security Council resolutions and enforce sanctions on North Korea," he said. "Any violation that detracts from the world's goal of finally, fully denuclearizing North Korea would be something that America would take very seriously."
Later Saturday, Pompeo went to greet Ri during a group photo of the ASEAN Regional Forum ministerial meeting. They shook hands and briefly exchanged smiles and a few words. Pompeo then went back to his place.
Ri later addressed fellow foreign ministers at the security forum, though Pompeo had already left to fly to Indonesia.
Ri said that North Korea has "initiated goodwill measures" by declaring a moratorium on nuclear tests and rocket launches and dismantling a nuclear testing ground, but that the U.S. has responded by "raising its voice louder for maintaining the sanctions against the DPRK and showing the attitude to retreat even from declaring the end of war, a very basic and primary step for providing peace on the Korean Peninsula." North Korea's official name is the Democratic People's Republic of Korea.
"What is alarming, however, is the insistent moves manifested within the U.S. to go back to the old, far from its leader's intention," Ri said.
"Worse still, extremely inappropriate moves are shown of putting pressure on other countries not to send high-level delegations to the celebrations marking the 70th founding anniversary of the DPRK in September this year," Ri said.
Later Saturday, Pompeo said in a tweet that he "had the chance to speak with" Ri on Saturday. "We had a quick, polite exchange," Pompeo said.
Meanwhile, the U.S. State Department said President Donald Trump's reply to North Korean leader Kim Jong Un's latest letter was hand-delivered to Ri in Singapore.
Department spokeswoman Heather Nauert said Trump's reply to Kim was given to Ri by Sung Kim, the U.S. Ambassador to the Philippines who has been leading logistical negotiations with the North on its pledge to denuclearize. Nauert would not address the content of Trump's letter to Kim.
The White House said earlier in the week that Kim had sent a new letter to Trump and that the president had written a response.
At the United Nations, a summary of a report by experts monitoring UN sanctions against North Korea was sent to the Security Council on Friday that said North Korea is continuing with both its nuclear and missile programs. And, in addition to the oil transfers, it said the North was violating sanctions by transferring coal at sea and flouting an arms embargo and financial sanctions.
Late Friday, U.S. Ambassador to the United Nations Nikki Haley raised the alarm, saying that "talk is cheap." "Russia cannot support sanctions with their words in the Security Council only to violate them with their actions," she said in a statement. She made the remarks as the U.S. asked the Security Council to add a North Korean bank executive, a North Korean company, a Chinese company and a Russian bank to the UN sanctions blacklist.
In his discussions with Southeast Asian officials in Singapore, Pompeo said he had implored them all to "strictly enforce all sanctions," including an end to ship-to-ship transfers of oil for North Korea, and had been encouraged by the response.
Despite the warning to Russia, Pompeo said he remained optimistic that North Korean leader Kim Jong Un will follow through on his pledge to Trump to denuclearize. But he said the timeline for the North's full and final denuclearization remains a work in progress.
Earlier, in an interview with a Singapore's Channel News Asia, Pompeo had said the pace for the dismantlement of the North's nuclear weapons program would rest with Kim. "The ultimate timeline for denuclearization will be set by Chairman Kim, at least in part," he said. "The decision is his."
At the news conference, however, Pompeo appeared to step back from that comment, noting that the timeline is subject to negotiation between Washington and Pyongyang. He recalled that Kim had committed to denuclearization at the historic summit with Trump on June 12 in Singapore and that both sides "have been working since then to develop the process through which that will be achieved."
"The process of achieving denuclearization of the Korean peninsula is one that I think we have all known will take some time," Pompeo said, adding later: "I am optimistic that we will get this done in a timeline and the world will celebrate what the UN Security Council has demanded."
Pompeo said on Friday that while there's "still a ways to go," the United States remains "confident" in North Korea's commitment to denuclearize.
On Thursday, the White House announced that Trump had received a new letter from Kim and had responded quickly with a letter of his own. The correspondence came amid fresh concerns over Pyongyang's commitment to denuclearization despite a rosy picture of progress painted by Trump.
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Associated Press writer Edith M. Lederer at the United Nations contributed to this report.