Philippines Says Chinese Coast Guard Blocked Thitu Law-Enforcement Mission

What changed

The Philippines says Chinese coast guard vessels and a PLA Navy helicopter obstructed a law-enforcement mission near Thitu Island on October 4. Philippine Coast Guard, Navy and police maritime personnel were pursuing a foreign fishing vessel suspected of dynamite fishing near Sandy Cays 2 and 3, about three nautical miles west of Thitu, when the vessel escaped toward Chinese-held Subi Reef.

The Philippine team returned to Thitu for safety reasons. Separately, Manila said a Chinese J-16 fighter repeatedly made close approaches to a Philippine patrol aircraft near Scarborough Shoal on October 3.

Why it matters

This was not simply a standoff over presence at sea. Philippine personnel say they were trying to stop a suspected fishing violation, and Chinese vessels’ horns, radio challenges, shadowing and blocking ended that pursuit. A Chinese navy helicopter reportedly circled the team four times.

That gives the incident a practical consequence: the suspected vessel got away, while Manila’s ability to enforce its own laws around Thitu was curtailed. The Philippines says Chinese coast guard ships had no law-enforcement authority in Thitu’s territorial sea.

Thitu is a 37-hectare Philippine-held feature about 450km from the mainland, and the operation unfolded close to it. The separate aircraft encounter near Scarborough Shoal suggests that Philippine vessels and aircraft are facing pressure across more than one disputed location. On the Philippine account, the outlook is for continued friction whenever Manila conducts routine patrols or enforcement missions in waters claimed by both countries. The fishing vessel’s identity and whether dynamite fishing actually occurred remain unconfirmed, and China’s embassy in Manila had not immediately commented.