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Japan warns Xiang Yang Hong 22 seafloor survey near Diaoyutai

By Drooid · Sep 30, 2026, 6:37 AM UTC · How we work

Summary

Story summary

China’s research vessel Xiang Yang Hong 22 surveyed Japan’s exclusive economic zone near the Diaoyutai Islands.
Japan’s Coast Guard saw a tubular device extending from the vessel into the sea in July.
Japan’s Defense Ministry said the seafloor data could support anti-submarine and submarine warfare.
Japan recorded 13 Chinese marine-research incidents in Ryukyu EEZs by last Friday, versus six in all of 2025.

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Story summary

China’s research vessel Xiang Yang Hong 22 surveyed Japan’s exclusive economic zone near the Diaoyutai Islands.
Japan’s Coast Guard saw a tubular device extending from the vessel into the sea in July.
Japan’s Defense Ministry said the seafloor data could support anti-submarine and submarine warfare.
Japan recorded 13 Chinese marine-research incidents in Ryukyu EEZs by last Friday, versus six in all of 2025.