China, fearing the radars could be used to monitor it, is also vehemently opposed to the deployment and has exerted pressure on Seoul to remove the system, including encouraging boycotts of South Korean businesses and entertainment.
The deployment of Thaad "does not help addressing the security concerns of relevant countries", Geng Shuang, a spokesman for China's foreign ministry, said at a briefing in Beijing on Wednesday.
Putin gave no indication on Thursday whether Moscow would back that resolution; but he and top Russian government officials have previously condemned the idea of tightening sanctions and shown little enthusiasm to stop modest fuel exports to Pyongyang or send home North Korean workers.
In South Korea, thousands of police officers in riot gear swarmed 400 protesters who had been occupying a road leading to the site where THAAD is installed in the rural town of Seongju.
The THAAD is thought to be the world's most advanced interceptor.
Residents near the deployment site have voiced concerns that the system's powerful radars could have adverse health effects, a claim US and South Korean defense officials have said is baseless. He said it "offers a genuine way to defuse the tensions and a step-by-step settlement". Russian Foreign Minister Sergei Lavrov said that it was too early to draw conclusions about the final form of the United Nations resolution, Russia's Interfax news agency quoted Lavrov as saying at a news conference on Friday.
"We must increase the intensity of U.N. Security Council sanctions", Mr. Moon told Mr. Putin, according to a readout from South Korea's presidential office.
Moon Jae-in with Vladimir Putin in Vladivostok on September 6.
Some members of the ruling Democratic Party called to redeploy US tactical nukes on Thursday, as President Moon Jae-in struggles to find common ground between China and Russian Federation concerning an oil embargo on the Pyongyang regime in response to its latest nuclear test.
South Korea has pushed for moves to cut off Pyongyang's key supplies of fuel oil, but Russian Federation dismissed such a call, while China has also reluctant to take measures that could trigger instability or a refugee exodus on its frontier.
The leaders of South Korea and Japan are holding talks with Putin in Vladivostok on the sidelines of a conference on economic development of Russia's Far East.
"I assure you, if this path is adopted, then the situation in the region will gradually change, as well as relations between the Pyongyang and Seoul, and we will be able to expect some new steps", Putin stressed.
The North carried out its sixth and most powerful nuclear test to date on Sunday in what it claimed was a detonation of a thermonuclear weapon built for its ICBMs.
President Moon Jae-in and his Russian counterpart Vladimir Putin (left) pose with mascots for the 2018 Pyeongchang Winter Olympics at a booth in Russia on Wednesday.
Japanese Prime Minister Shinzo Abe and South Korean President Moon Jae-in spoke at a regional meeting in the eastern Russian city of Vladivostok and agreed to persuade China and Russia to cut off oil to North Korea as much as possible, according to South Korean officials.