The Philippine Coast Guard (PCG) conducted a Maritime Domain Awareness (MDA) flight on 17 May 2026 to address and drive away unauthorized marine scientific research (MSR) activities being conducted by a Chinese research vessel in the vicinity of Cay-2 and Cay-3, which falls inside the territorial sea of Pag-asa Island.
On 16 May 2026, PCG monitored the China-flagged research vessel Xiang Yang Hong 33, an advanced oceanographic survey vessel capable of supporting submersible craft and conducting comprehensive marine ecological surveys, …