HANGZHOU, Sept. 5 (Xinhua) — South Korean President Park Geun-hye said at a summit meeting with Chinese President Xi Jinping on Monday that North Korea's fourth nuclear test and missile launches posed a challenge to the South's ties with China, Yonhap news agency reported.

China opposes the U.S. deployment of THAAD anti-missile system in the Republic of Korea (ROK), President Xi Jinping told ROK President Park Geun-hye on Monday.

Park said North Korea's provocations gravely damaged peace and stability on the Korean peninsula and in Northeast Asia, Yonhap said after her meeting with Xi on the sidelines of the Group of 20 major economies leaders' meeting in Hangzhou, China.

"Mishandling the issue is not conducive to strategic stability in the region, and could intensify conflicts," Xi said in Hangzhou.

Xi reaffirmed China's commitment to realizing denuclearization on the Korean Peninsula, safeguarding peace and stability of the peninsula, and solving relevant issues through dialogue and consultation.

He urged adhering to the six-party talks platform, addressing the concern of various parties in a comprehensive and balanced way, treating both symptoms and root causes, and realizing long-term peace and stability in the Peninsula.

Calling China and the ROK "close neighbors with broad common interests," Xi said both sides share long-term interests in their common development and regional peace.

The Chinese president commended "leapfrog development" of bilateral ties and the great benefits brought to people on both sides, after the two countries established diplomatic relations 24 years ago.

China and the ROK should cherish their political mutual trust, safeguard their cooperative foundations, and overcome difficulties and challenges, in order to put bilateral ties on the right track toward stable and healthy development, Xi said.