China's navy and air force frequently carry out drills in the South China Sea. (File)
China's Defence Ministry said on Friday the United States had seriously harmed the country's sovereignty and security after a US Navy destroyer carried out a "freedom of navigation" operation in the disputed South China Sea.
Provocative behaviour by the United States will only cause the Chinese military to strengthen its defence capabilities, the ministry said in a statement.
© Thomson Reuters 2018(This story has not been edited by NDTV staff and is auto-generated from a syndicated feed.)
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