Tensions Rise Over Unconsented Ocean Research in Japan's EEZ

Japan has lodged a formal protest with China after detecting a Chinese vessel conducting unauthorized marine research in Japan’s EEZ waters, escalating tensions between the two countries. The vessel, Xiang Yang Hong 22, was discovered southwest of Amami Oshima, leading to increased diplomatic dialogue over territorial disputes.


Devdiscourse News Desk | Tokyo | Updated: 29-09-2025 13:16 IST | Created: 29-09-2025 13:16 IST
Tensions Rise Over Unconsented Ocean Research in Japan's EEZ
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  • Country:
  • Japan

Japan has filed an official protest to China, urging them to cease ocean research activities in Japan's exclusive economic zones (EEZ). The action followed the sighting of the Chinese vessel 'Xiang Yang Hong 22' in the southwestern waters of Japan.

According to Chief Cabinet Secretary Yoshimasa Hayashi, the Japanese Coast Guard identified the vessel deploying a wire-like object into the ocean about 379 kilometers west of the island of Amami Oshima.

Hayashi emphasized that conducting marine scientific research without Japan's consent is unacceptable, a sentiment communicated to the Chinese government. The contentious incident underscores ongoing territorial disputes over islands in the East China Sea.

(With inputs from agencies.)

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