South Korea and Japan have failed to win Chinese support to censure North Korea over the sinking of a South Korean warship. <br/><br/>Host President Lee Myung-Bak and Japanese Prime Minister Yukio Hatoyama teamed up at the two-day summit to urge Chinese Premier Wen Jiabao to hold Pyongyang responsible for the March sinking of the South Korean corvette. <br/><br/>But Wen gave no sign that China is ready to back United Nations Security Council action against its ally over the sinking, which cost 46 lives. <br/><br/>Chinese Premier Wen Jiabao told at a joint press conference that the priority was to reduce tensions and avoid a clash over the incident. <br/><br/>The three-nation summit was meant to focus on trade, but the sinking of the warship overshadowed other issues.