The U.S. sent two warships to a disputed shoal in the South China Sea, where two Chinese ships recently collided while chasing a boat from the Philippines.

Dramatic footage shows two Chinese government ships violently colliding Monday while chasing down a Filipino coast guard vessel in a disputed area of the South China Sea.

A Chinese warship crashed into one of its own country's coast guard vessels as it chased a patrol boat belonging to the Philippines in the South China Sea.

China's assertive and unsafe behavior in the South China Sea has made crashes more likely, experts say. Questions remain on what China will do next.

Chinese ships collide in pursuit of a Philippine vessel in the South China Sea:::: At SeaA Chinese Navy ship and a China Coast Guard vessel collided near the disputed Scarborough Shoal while pursuing a Philippine patrol vessel,

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 Philippine Coast Guard (PCG) revealed on Saturday that suspected Chinese signal interference prevented the agency from launching drones during a resupply mission to Bajo de Masinloc earlier this week.