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Beijing also said it had no information about the fighter jet.
"As for the situation you mentioned, I have no relevant information to offer at the moment," Foreign Ministry spokesperson Lu Kang said, to a question on the missing Indian jet and if China would come forward to help in the search.
"First of all, on the eastern section of the China-India border, our position is consistent and clear. We have been following the situation in South Tibet very closely. We hope India can stick to arrangements between two sides and avoid disturbing peace and stability in border areas," he said.
A search has been launched to trace the aircraft and pilots.