Overview
- The Chinese coast guard fired water cannon and sideswiped the Philippine vessel BRP Datu Sanday during a sand-sampling mission near Sandy Cay on May 21, 2025.
- This is the first reported use of water cannon by China against Philippine vessels in the Sandy Cay area, escalating tensions in the South China Sea.
- The Philippines condemned the incident as an aggressive and dangerous act that damaged the ship and endangered civilian researchers onboard.
- China defended its actions, claiming the Philippine vessels illegally entered its waters and approached its ship dangerously, while the Philippines maintains the area is within its territorial waters.
- The U.S. reaffirmed its support for the Philippines under the Mutual Defense Treaty, warning that China's actions threaten regional stability and international law.