Philippine Coast Guard Monitors Chinese Research Ship Near Rozul Reef
The coast guard said the ship’s movements and nearby militia vessels suggest unauthorized marine scientific research inside the Philippines’ exclusive economic zone.
- On Thursday, the Philippine Coast Guard deployed aircraft to issue radio warnings to the Chinese oceanographic research vessel Xiang Yang Hong 33 operating near Rozul Reef in the South China Sea.
- The vessel's presence and accompanying Chinese Maritime Militia ships represent a "serious infringement" on Philippine sovereign rights, the PCG said, confirming ongoing "unauthorized" marine scientific research within the Philippines' exclusive economic zone.
- Using Canada's Dark Vessel Detection system, the PCG tracked the Xiang Yang Hong 33 across multiple features since leaving China on April 15, while spotting 41 Maritime Militia vessels near Iroquois Reef.
- The Chinese Embassy denied the allegations, accusing a PCG spokesman of spreading a "false narrative," while Deputy Spokesperson Guo Wei stated China has "indisputable sovereignty" over the Spratly Islands.
- Chester B. Cabalza, president of International Development and Security Cooperation, argues such unauthorized research violates the United Nations Convention on the Law of the Sea, proposing permanent logistics hubs to strengthen deterrence.
15 Articles
15 Articles
Philippine Coast Guard challenges illegal Chinese research in contested waters
THE Philippine Coast Guard (PCG) said it challenged what it described as illegal Chinese marine scientific research (MSR) activities and the continued swarming of Chinese maritime militia vessels in the Kalayaan Island Group (KIG) during a maritime domain awareness (MDA) flight on Wednesday.In a statement issued on Thursday, the PCG said its Islander 4177 aircraft monitored the Chinese oceanographic research vessel Xiang Yang Hong 33 about 7.34 …
Philippines warns Chinese research ship in disputed waters
The Philippine Coast Guard said on Thursday (May 7, 2026) it deployed aircraft to issue radio warnings to a Chinese research ship in a disputed area of the South China Sea "swarming" with vessels from Beijing's so-called maritime militia.
PHL challenges China over ‘illegal’ research, swarming in Spratly Islands - BusinessWorld Online
By Pexcel John Bacon THE Philippines conducted a routine flight to challenge China, accusing it of conducting “illegal” marine scientific research (MSR) activities and swarming in Spratly Islands (Kalayaan Island Group), its coast guard said on Thursday. During a maritime domain awareness (MDA) flight, Philippine Coast Guard (PCG) aircraft Islander 4177 reportedly spotted the Chinese oceanographic research vessel Xiang Yang Hong 33, anchored app…
Philippines warns Chinese research ship over ‘unauthorised operations’ in disputed South China Sea
The Philippine Coast Guard said today it deployed aircraft to issue radio warnings to a Chinese research ship in a disputed area of the South China Sea “swarming” with vessels from Beijing’s so-called maritime militia.
Philippines warns China research ship in disputed waters
MANILA: The Philippine Coast Guard said Thursday it deployed aircraft to issue radio warnings to a Chinese research ship in a disputed area of the South China Sea “swarming” with vessels from Beijing’s so-called maritime militia.
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