"There have been many places, in which Russians have been useful", Pompeo told journalists after his meeting with the UN Secretary-General Antonio Guterres in NY, when asked about Russia's role in North Korea's denuclearization.
She also expressed her disappointment in the panel for "caving to Russian pressure", calling it a "dangerous precedent".
Russia also blocked a U.S. move to blacklist Russian ships allegedly involved in illegal ship-to-ship transfers of refined oil to North Korea and is refusing to expel a North Korean operative, Haley said.
It is also noted that North Korea increased the oil import from Russian Federation and China.
Washington has also accused Russian Federation of violating United Nations sanctions on North Korea by granting work permits to North Korean laborers despite Russia's denial of any such actions.
"When North Korea eliminated Kim Jong-Nam gas VX, a deadly nerve agent, the United States initiated the increased restrictions of the UN in respect of the supply of chemical and biological weapons North Korea", - said the head of the USA delegation to the UN.
Haley said an amended version was submitted last week that removed evidence of Russian actors violating sanctions.
Russian Ambassador Vassily Nebenzia countered that the work of the panel of experts "became increasingly politicized, then became ultimately the hostages to the vision of Washington" and didn't take into account Russia's views. Representatives from Japan and South Korea were present as countries relevant to the issue.
In the report, investigators concluded the sanctions against North Korea have been rendered "ineffective" by cheating from Russia, China, and other allies of the regime in Pyongyang.
The US often has multiple Navy warships along with allied vessels operating in the area to support the United Nations sanctions enforcement mission. "It must end its concerted effort to cover up evidence of sanctions violations", Haley said at the United Nations headquarters in NY.
"This is a falsehood", he said, according to the official translation of his remarks.
"We must not waiver", Bessho said.
Just three hours away from Moon's flight to Pyongyang, U.S. State Department spokesperson Heather Nauert released a statement on Kang and Pompeo's second phone call and said they "affirmed the strength of the U.S. -ROK alliance and the importance to maintain pressure until we achieve the shared goal of final, fully verified denuclearization of the DPRK".
The US has not been very public about its efforts partly to avoid irritating Pyongyang in the midst of negotiations over its nuclear program.
Haley told the council that "difficult, sensitive talks with North Korea are ongoing" about denuclearization following the meeting between Kim and President Trump in Singapore in June. But we are not there yet. "Sanctions can not replace diplomacy".
Last month, Trump tweeted that "China is providing North Korea with considerable aid, including money, fuel, fertilizer and various other commodities".