China-Philippines navy spat captured on camera
Journalists on board a Philippine ship have witnessed a Chinese coast guard vessel trying to block access to a disputed shoal in the South China Sea.
The Chinese ship radioed to demand the crew turn around, or "take full responsibility" for their actions.
But the Philippine boat, ferrying food to troops stationed on the Second Thomas Shoal, managed to slip past.
The shoal is one of many flashpoints in the area, where several countries have overlapping territorial claims.