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South China Sea

Chinese survey ships straying into other nations' EEZs, data shows

Tensions rise as Beijing's research vessels crisscross South and East China Sea

The Independence-class littoral combat ship USS Gabrielle Giffords, top, conducts routine operations in the vicinity of the Chinese vessel Hai Yang Di Zhi 4, in the South China Sea, July 1, 2020. (Photo courtesy of the U.S. Navy)

TOKYO/BEIJING/MANILA -- Chinese survey vessels are increasing their research in the Asia Pacific region, as Beijing steps up efforts to increase its maritime interests.

Nikkei analyzed the automatic identification system data on 32 Chinese survey vessels from a database provided by ship tracking website Marine Traffic, and examined the ships' voyages over the 12 months through late November 2020.

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