"North and South Korea are one nation. North-South relations are an important factor influencing the situation on the Korean peninsula. As a close neighbour, China has consistently supported and hoped that the parties will improve relations through negotiations and dialogue, and promote cooperation," Hua said at a briefing.
Earlier in the day, Pyongyang's Korean Central News Agency said that North Korea would cut all communication lines with South Korea, claiming that there was nothing more to discuss at the negotiating table and not responding to Seoul's attempts to contact its neighbour through different channels.
North Korea has been angered by Seoul's reluctance to stop a leafleting campaign by North Korean defectors who have been sending balloons carrying pamphlets critical of Pyongyang across the border.