(CNN) -- Secretary of State Rex Tillerson told the UN Security Council on Friday that North Korea must cease all threatening behavior before talks with the US can begin, omitting to mention his earlier offer of talks without preconditions.
Tillerson earlier in the week said he was willing to start talks with Pyongyang without preconditions, appearing to reveal another rift between the State Department and the White House, where staffers said they were caught off guard by his offer.
"As I said earlier this week, a sustained cessation of North Korea's threatening behavior must occur before talks can begin," Tillerson told the UN meeting, which was convened to discuss Pyongyang's denuclearization, adding that "North Korea must earn its way back to the table."
The top US diplomat said that the US, "will in the meantime keep our channels of communication open." And he acknowledged the presence of a high level North Korea representative in the room. "I, too, welcome the attendance of the representative of North Korea so that we have the opportunity to speak directly to their representative as well," he said.
But he did not say a line that had appeared in his prepared comments, distributed by the State Department on embargo earlier in the day. Tillerson had been set to say that, "apart from that step, there are no preconditions for talks, nor will we accept pre-conditions from North Korea or others."
Asked about the omission, the State Department's Undersecretary of Public Affairs Steve Goldstein said that, "nobody took that out for him. The Secretary doesn't speak word for word from prepared remarks and works to deliver the words that will be the most impactful to the audience he is addressing."
Tillerson did double down on the administration's tough talk, even as other countries warned that US rhetoric and actions are part of the problem.
"We have been clear that all options remain on the table in the defense of our nation, but we do not seek, nor do we want, war with North Korea," Tillerson said. "The United States will use all necessary measures to defend itself against North Korean aggression, but our hope remains that diplomacy will produce a resolution."
But Russia's ambassador to the UN, Vasily Nebenzya said, "it should be clear to everybody that the DPRK is hardly going to refrain from its nuclear missile program while it feels a direct threat to its security."
Referring to joint military drills the US conducts with South Korea, Nebenzya said, "indeed this is how Pyongyang evaluates the regular widescale maneuvers and exercises by the United States and its allies in the region."
"In the conditions of such tension, one ill thought out or misinterpreted step could lead to lamentable consequences," the Russian said, warning of a "policy of mutual pressure and intimidation."
He challenged Tillerson, questioning the US commitment to finding a peaceful resolution. He noted that after about two months of quiet on North Korea's part, the US held massive military drills with South Korea and then announced it was placing Pyongyang on a list of state sponsors of terrorism.
"All of these steps force us to wonder about the sincerity of statements that suggest that there is a preference for a peaceful approach to resolving the crisis in DPRK," Nebenzya said.
China's ambassador echoed Russia's rebukes. "The current situation on the peninsula is not caused by any one party alone and it's unfair to impose on any one partner the responsibility" for resolving it, said China's Deputy Permanent Representative to the United Nations Amb. Wu Haitao. He called for dialogue, an end to US military exercises, and an end to "mutual blaming."
Tillerson rejected the argument that the US bore any blame, saying, "there is but one party that has carried out illegal detonation of illegal devices, there is but one party that launches intercontinental ballistic missiles ... that is the Kim regime in North Korea."
"They alone are responsible for these tensions, they alone must take responsibility for these tensions, and they alone can solve these tensions," Tillerson said.
Tillerson made clear that there would be no let-up in his campaign to squeeze North Korea and steadily choke off its diplomatic channels and means of financial support. That campaign, he said, must be given time to succeed.
"North Korea's growing capabilities reflect a direct threat to our security and the security of the entire world," Tillerson said. "We do not regard this claim as an empty threat. In the face of such a threat, inaction is unacceptable for any nation."
The US is even more determined to continue its peaceful pressure campaign, Tillerson said, with the goal of "setting the conditions for North Korea to engage in serious negotiations toward the complete, verifiable, and irreversible abandonment of its nuclear weapons programs."
The top US diplomat, who met Thursday with Trump and Defense Secretary James Mattis, urged countries in the room to do more than just meet the letter of UN Security Council resolutions sanctioning North Korea -- and called out Moscow and Beijing in particular.
"Continuing to allow North Korean laborers to toil in slave-like conditions inside Russia in exchange for wages used to fund nuclear weapons programs calls into question Russia's dedication as a partner for peace," Tillerson said.
"Similarly, as Chinese crude oil flows to North Korean refineries, the United States questions China's commitment to solving an issue that has serious implications for the security of its own citizens," he added.
Tillerson extended that challenge to other countries that have been slow to fully implement existing resolutions on North Korea, saying that it calls "into question whether your vote is a commitment to words only, but not actions."
Rising tensions between the US and North Korea, which conducted its largest nuclear test in September and fired off a powerful ICBM in late November, have raised deep concern worldwide.
It is "the most tense and dangerous security situation in the world today," UN Security General Antonio Guterres told the UN as the meeting opened. Guterres said he was concerned about "unintended escalation or miscalculation," which he said was being increased by "misplaced confidence, dangerous narratives and the lack of communications channels."
(©2017 Cable News Network, Inc., a Time Warner Company. All rights reserved. By Nicole Gaouette)
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