Chinese foreign ministry spokesman Geng Shuang also reiterated Beijing's opposition to South Korea's deployment of the US Terminal High-Altitude Area Defence System, also known as THAAD, which is meant to protect against North Korean missile attacks.
South Korea is on high alert as it believes North Korea might launch a new intercontinental ballistic missile over the weekend to celebrate the 69th year of its founding, an official said. They also say the health rumours are groundless and no such issues have been reported at other THAAD sites.
Seoul has hardened its stance against Pyongyang after its torrent of arms tests, the latest on Sunday being a detonation of what North Korea said was a thermonuclear weapon built for missiles capable of reaching the U.S. mainland. Two launchers had already been deployed in April.
Her administration made the THAAD agreement with Washington in July 2016 over the objections of local protesters, who fear it will have adverse effects, and China, which fears the system's powerful radar could be used against it as well.
The United States on Friday told the U.N. Security Council that it intends to call a meeting on Monday to vote on a draft resolution establishing additional sanctions on North Korea for its missile and nuclear programme, the U.S. Mission to the United Nations said in a statement. It also has tens of thousands of soldiers and artillery positioned near the heavily fortified border that divides the peninsula.
The decision to deploy THAAD, created to shoot down short- to medium-range missiles mid-flight, has drawn strong objections from China. But he promised the deployment would be conducted in a transparent and democratic way.
With the government keeping a wary eye on China's next move amid the deployment of an additional THAAD missile defense battery, South Korean companies are bracing for further retaliation from the Chinese government. One of their main arguments is that the system could emit harmful radiation as well as harming the economy.
At various times in the last 25 years, large majorities thought a war was likely, with the 1992 poll showing 69% of South Koreans expected a war would begin.
Defense officials from 38 countries, along with civilian security experts and officials from worldwide organizations such as North Atlantic Treaty Organisation, are gathered in Korea's capital for the sixth annual Seoul Defense Dialogue, the region's highest ranking multilateral security forum.
He said Japan and South Korea are "in jeopardy" and need protecting. The two countries have been at loggerheads over South Korea's decision to deploy a USA anti-missile system, the Terminal High Altitude Area Defense, which has a powerful radar that can probe deep into China.