The China Coast Guard (CCG) on Wednesday warned Manila to stop its infringements, provocations and actions, saying that a Philippine vessel intentionally rammed into a CCG ship around the Huangyan Dao, also known as the Scarborough Shoal.

"Otherwise, the Philippines will be held accountable for all consequences arising from this," CCG spokesperson Liu Dejun said.

On Wednesday, the CCG said the Philippines deployed coast guard vessels, official ships and fishing boats into waters around Huangyan Dao in the South China Sea as the Chinese fleet responded in accordance with the law and regulations.

The CCG said that Philippine ships "came dangerously close", adding that a Philippine vessel ignored multiple warnings, made a sharp turn, reversed and deliberately rammed into a CCG ship.

Liu added the Philippine side was the party at fault.

The Philippines said the CCG had fired water cannon and "sideswiped" a government vessel during a maritime patrol.

Manila also released a video appearing to show a Chinese coast guard ship firing a jet of water at the Philippines fisheries department vessel.

The CCG accused Manila of making "bogus accusations in an attempt to mislead international understanding".

China said Huangyan Dao has always been its territory.

Tensions between Manila and Beijing escalated last month when Philippine President Ferdinand Marcos signed two laws defining the country's sea waters and imposing fixed lanes for foreign ships, prompting China to summon the Philippine ambassador.

And ties frayed further when the Philippines and the United States signed a security deal allowing both sides to share classified information. (Xinhua/AFP)