The United States acted in "bad faith" in Vietnam, where President Donald Trump and his team held talks with North Korea, said its leader Kim Jong Un during a summit with Russian President Vladimir Putin.
Trump and Kim met in Hanoi in February, but the negotiations ended abruptly and a joint signature was canceled. Trump said that North Korea's demand that the United States lift economic sanctions in its entirety forced his team to move away from reaching agreement. North Korean officials refused to demand full sanctions.
On Thursday, Kim said at his first summit with Russia's Putin in the eastern Russian port Vladivostok "the situation on the Korean peninsula and the region has now stopped and reached a critical point," reported the Korean central news agency.
The North Korean leader also warned that the situation "can return to its original state when the United States took a one-sided attitude in bad faith in the recent talks in the North Korea and US summit".
Trump says sanctions against North Korea to stay in place
"Peace and security in the Korean Peninsula will depend entirely on the American future position, and the DPRK will commit to every possible situation," KCNA Kim quoted.
Russia has already called for the sanctions to be relieved, while the United States has accused it of trying to help Pyongyang evade some of the measures – accusations Moscow denies.
A week ago, Pyongyang demanded the removal of US Secretary of State Mike Pompeo from the delayed nuclear negotiations and accused him of tracing the process.
On Thursday, Putin emerged from the meeting and said that, like Washington, Moscow supported efforts to reduce tensions on the Korean Peninsula and prevent nuclear conflicts. 19659009]. But he also insisted that the Nordic region needed "guarantees of its security, the preservation of its sovereignty".
"We must … return to a state where international law, not the law of the strongest, determines the state of the world," Putin says.
Experts say the true purpose of Kim's visit to Russia was a chance to rely on some angular space when talking to the United States, resume – and to use Russia as the bookmaker if Trump goes too far with his threats.
"This is the breakthrough on the Korean side [North] that was necessary to tell the United States:" Look, we have normal ties to Moscow if something happens, we will run to them for protection, stop waking you up Fists, "said Dmitry Zhuravlev, Director General of the Regional Affairs Institute, a think tank of Moscow, to Al Jazeera.
Moscow still has the veto of the United Nations Security Council, and it will play a role in nations related to North Korea.
The nations share a border, and Russia serves as a workplace for at least 10,000 North Korean migrant workers, an important source of hard currency for Pyongyang.
Russia will not have a nuclear disaster next door, but its interest in disarmament of North Korea is limited Kim The dynasty is likely to mean that a united Korea will be the United States ally, and US military bases could be seen off Russia's Pacific provinces.
The meeting was Kim's first with another head of state since returning from Hanoi.  Followed by repeated invitations from Putin after Kim began a number of diplomatic overtures last year.
Since March 2018, the North Korean leader has held four meetings with Chinese President Xi Jinping, three with South Korea's Moon Jae-in, two with Trump and one with Vietnam's president.
Putin told reporters he would fill out the results of the Washington negotiations.
"There are no secrets here, no conspiracies … President Kim even asked us to inform the United States of our attitude," Putin said.
No agreement was reached as the Trump-Kim Summit was short
Al Jazeera and news agencies