China urged South Korea and the United States to return to multilateral dialogue following North Korea's latest nuclear weapons test, the Foreign Ministry said Wednesday. Foreign Minister Yang Jiechi spoke to US Secretary of State John Kerry by telephone late Tuesday, urging the resumption of stalled six-nation negotiations on ending Pyongyang's weapons programme, it said. "We urge all relevant parties to focus on the overall situation, respond appropriately, and prevent the situation from escalating," Yang was quoted as saying by DPA. Yang also "exchanged views on the situation on the Korean peninsula" by telephone Wednesday with his South Korean counterpart, Kim Sung Hwan, the ministry said.