China said on Friday the Philippines had sent supplies to a warship grounded on Second Thomas Shoal, a disputed atoll in the South China Sea. In a separate statement, the Philippine Coast Guard said it had rotated personnel staffing the Sierra Madre and sent supplies to the vessel,

China has held sea and air combat drills at disputed Scarborough Shoal, an uninhabited area of reefs and rocks it had seized from the Philippines in the South China Sea.

The move was a direct response to the Philippines’ enactment of two new laws aimed at strengthening the country’s own maritime claims.