One of China's vice-foreign ministers, Cui Tiankai, said this was an "isolated incident".

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Turning to North Korea, Vice Foreign Minister Cui Tiankai dismisses earlier media reports of China and the US striking a deal on sanctions as "inaccurate".

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Also at the meeting were China's new finance minister Lou Jiwei, U.S. Ambassador Gary Locke, an assistant Chinese foreign minister Cui Tiankai, and other officials of both governments.

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