Negotiations over the termination of North Korea's nuclear weapons programme ended without an agreement Friday in the northern Chinese city of Shenyang, South Korea's Yonhap news agency reported. The two-day talks among the negotiators from the six-party participants (North and South Korea, the United States, China, and Japan and Russia) were according to a South Korean delegate "positive and friendly," but ended after a failure to find a "common definition of disablement," , DPA reported. US envoy Christopher Hill was reported to have said that much more was needed to be discussed in order to come to a general understanding. The aim of the meeting was to set deadlines to fulfil a February agreement for North Korea to shut down its entire nuclear programme and open it up to inspections, the official Chinese news agency Xinhua reported, citing South Korean officials.