The Philippine Coast Guard (PCG) has mobilized air and sea assets in response to a Chinese deep-sea research vessel operating near Hubo Reef in the West Philippine Sea. The PCG alleges the ship was conducting “unauthorized” marine scientific research. Surveillance reports indicated the vessel was engaged in diving operations within the Philippines’ exclusive economic zone (EEZ). This deployment highlights ongoing tensions regarding China's activities in the contested waters. The Philippines maintains its sovereign rights over the West Philippine Sea and is actively monitoring foreign vessels operating within its EEZ. Further details regarding the nature of the research and the PCG’s interaction with the Chinese ship have not yet been released. The incident underscores the sensitive nature of maritime claims in the region.