"Japan is no longer needed to exist near us", the committee said.
North Korea has made threats to reduce the USA to "ashes and darkness" in response to sanctions imposed by the UN.
The Korea Asia-Pacific Peace Committee, a North Korean group that manages the nation's global relations and propaganda, called for disbandment of the UN Security Council, calling it "a tool of evil" consisting of "money-bribed" countries operating on the wishes of the United States.
South Korean President Moon Jae-in ruled out the possibility of redeploying USA nuclear weapons in the country Thursday, CNN reported. "Let's reduce the USA mainland into ashes and darkness", it said.
"A telling blow should be dealt to them who have not yet come to senses after the launch of our ICBM (intercontinental ballistic missile) over the Japanese archipelago", the statement said.
A recent report by a United Nations panel of experts also found flaws in the enforcement of existing sanctions. Juche is the official state ideology of North Korea, which was designed by the grandfather of Kim Jong-un, President Kim Il-sung, and emphasizes national self-reliance and independence. "It is something that markedly heightens regional tension and is absolutely unacceptable", Japanese Chief Cabinet Secretary Yoshihide Suga told a regular news conference on Thursday, 14 September.
The statement also described South Korea as "traitors and dogs" of the US.
Despite the threat of war on the Korean peninsula, South Korea's president Moon Jae-in said he would not support having nuclear weapons in his own country.
A pre-emptive strike against Pyongyang's leadership would be hard to undertake, but it's widely seen as the most realistic of the limited military options Seoul has to deny a nuclear attack from its rival.
Moscow has repeatedly warned against the escalation of the Korean crisis and advocated a diplomatic solution.
The fresh sanctions were imposed against the Korean nation as it claimed to have successfully tested a hydrogen bomb - the sixth nuclear test carried out by the nation and its largest - which possibly triggered a 6.3-magnitude artificial natural disaster on September 3.
Despite the plan being rejected by Washington, some of the Russian and Chinese concerns were included in the recent UNSC resolution.
President Trump appeared skeptical about sanctions' effectiveness, describing the United Nations vote as "another very small step".