China and the Philippines have accused each other of causing collisions in the South China Sea. The Philippine government claims that a Chinese Coast Guard ship engaged in dangerous maneuvers that led to a collision with a Philippine vessel. China's Coast Guard accuses the Philippines of violating international marine law. Beijing claims "indisputable sovereignty" over most of the South China Sea despite a 2016 international tribunal ruling against its claims. It accused Philippine vessels of illegal entry into waters it claims. The collisions come after recent tensions between the two countries, including disputes over territorial claims and accusations of damage to coral reefs.