China Coast Guard Fires Water Cannon on Philippine Ships for Second Straight Day at Scarborough Shoal

Since Monday's clash at Second Thomas Shoal, where a Filipino sailor was struck with a baton by Chinese Coast Guard personnel, China has escalated to water cannon strikes on Philippine vessels two days running at Scarborough Shoal, the most contested feature in the South China Sea.

The Philippine Coast Guard said Friday a Chinese vessel closed to within roughly 7 meters (23 feet) of a Philippine fisheries boat, creating what spokesperson Jay Tarriela called "a serious risk of collision," according to Reuters. It was the second straight day of water cannon use, following a Thursday incident where Beijing scored what a Philippine Coast Guard official described as an indirect hit on a government fisheries vessel, per the Business Times.

Tarriela didn't mince words. "The PCG strongly condemns the dangerous and unprofessional actions of the China Coast Guard," he said, adding that Scarborough Shoal is a traditional Filipino fishing ground "whose rights cannot be lawfully impeded by any foreign power."

On Thursday, Tarriela had gone further, posting on X that China's actions "violated the International Regulations for Preventing Collisions at Sea (COLREGs) and endangered Filipino personnel engaged in a purely humanitarian undertaking," as reported by the Business Times.

Beijing tells a completely different story. China's Coast Guard said Friday it had imposed "control measures" on several Philippine vessels it accused of operating illegally near the shoal. A day earlier, China said it tracked and drove away two Philippine vessels it accused of having "intruded into" the waters despite warnings, calling its own response "standard, professional and lawful."

"We urge the Philippines to immediately cease its infringing and provocative actions," China's Coast Guard said in a statement carried by the Business Times.

Scarborough Shoal sits inside the Philippines' 200-nautical-mile exclusive economic zone under the U.N. Convention on the Law of the Sea. A 2016 international arbitration tribunal ruled largely in Manila's favor and found China's blockade of the shoal violated international law, according to Reuters. Beijing does not recognize that ruling and never has. China calls the feature Huangyan Dao and asserts historical sovereignty claims covering nearly the entire South China Sea, cutting into the exclusive economic zones of Brunei, Indonesia, Malaysia, the Philippines and Vietnam.

Legally, the arbitration ruling is about as close to settled international law as this dispute gets, and it favors Manila. Politically and militarily, China simply doesn't accept that ruling and has the coast guard fleet and naval backing to enforce its own version of events on the water. That gap between the legal finding and the physical reality is the entire South China Sea conflict in miniature.

The timing made this week's confrontations harder for Beijing to wave off. The water cannon incidents unfolded as Southeast Asian foreign ministers wrapped up Asean meetings in Manila, meetings attended by both Chinese Foreign Minister Wang Yi and U.S. Secretary of State Marco Rubio.

Rubio called China's actions in the South China Sea "disturbing" and reaffirmed U.S. support for the Philippines under the two countries' mutual defense treaty, according to Reuters. That treaty commitment matters because it's the mechanism that could pull Washington into a direct confrontation if a Philippine vessel or service member were killed in one of these encounters.

Wang Yi, for his part, used the sidelines of the Asean gathering to warn Manila of "bitter consequences of its own making" if it continues what Beijing frames as provocation "with the support of outside powers," the Business Times reported, an unmistakable reference to the U.S. alliance.

Both governments have now summoned each other's ambassadors over the Monday incident at Second Thomas Shoal, where China accused the Philippine navy of ignoring warnings and trying to ram a Chinese patrol boat, a claim Manila disputes. Neither side has released independent video or radar data settling who initiated contact in that specific encounter, leaving competing narratives as the only public record so far.

Three confrontations in a single week, two of them water cannon strikes on consecutive days, is a faster tempo than the pattern seen in recent months. The extent to which that represents a deliberate signal from Beijing timed to the Asean meetings versus routine patrol friction that simply clustered this week remains unclear from either government's public statements. What is clear: no injuries beyond the Monday baton strike have been confirmed, no shots have been fired, and both coast guards are still operating under their existing rules of engagement rather than anything resembling open conflict.