The Philippines expressed serious concern on Tuesday over what it called "dangerous manoeuvres and unlawful interference" by Chinese vessels during a coast guard supply mission for Filipino fishermen in the Scarborough Shoal in the South China Sea.

The Philippines wants China to "draw lessons" from a collision between two of its own ships yesterday while harassing a Philippine patrol vessel near Scarborough Shoal, saying the incident is a reminder to abide by international maritime rules.