Watch: Boats collide in South China Sea's disputed waters

The Philippines has accused China's coast guard of colliding with a Filipino supply boat in disputed waters of the South China Sea, endangering its crew.

China said the Philippines "deliberately stirred up trouble".

In a second incident also near Second Thomas Shoal on Sunday, Filipino authorities said a Chinese militia vessel bumped into a Philippine coast guard ship.

The armed forces of the Philippines have released footage they say show the collisions.