The Russian Foreign Ministry made the announcement in a statement issued on Friday after a meeting between Russian ambassador-at-large Oleg Burmistrov and Choe Son-hui, director-general of the North American department of North Korea's Foreign Ministry.
A senior North Korean official in charge of US affairs arrived in Vladivostok on Monday to speak with a Russian ambassador on ways of dealing with rising tensions between Washington and Pyongyang.
On Monday, North Korea's foreign minister, Ri Yong Ho, said the isolated state had the right to "shoot down" USA planes - even if they were not in the country's airspace.
Choe also met with Russian vice foreign minister Igor Morgulov, the foreign ministry said.
Russian Federation and China have previously said they both support a "suspension-for-suspension" approach to reign in North Korea's missile and nuclear weapons program.
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But critics say he wants to remove the last hurdle so that he can carry on in the role, possibly to rule for life. The draft legislation must be published in the government gazette before it is debated in the National Assembly.
A senior North Korean official in charge of USA affairs embarked her Russian Federation trip on Monday, Pyongyang's state media reported, amid escalating tensions on the Korean Peninsula over the North's nuclear program.
"There needs to be a mediator between both sides in order to prevent conflict". "On Russia's part, it wants to expand its clout in the Korean Peninsula, so North Korea would be aware it can make a middle man out of Putin".
It said that her trip was arranged at the invitation of Burmistrov who visited the North in late July.
Ri said Mr Trump's Twitter comments, in which he said leader Kim Jong Un "won't be around much longer" if he acted on his threats, amounted to a declaration of war. North Korea condemned China's passing of the sanctions through its state media, and on Saturday, specifically slammed the People's Daily and Global Times for "seriously hurting the line and social system of the DPRK", using the acronym of its official name, the Democratic People's Republic of Korea.