A Chinese navy vessel collided with one from its own coast guard while chasing a Filipino patrol boat in the South China Sea, the Philippines said, releasing dramatic video footage of the confrontation.
The incident occurred near the contested Scarborough Shoal as the Philippine Coast Guard escorted boats distributing aid to fishermen in the area, spokesperson Commodore Jay Tarriela said in a statement.
Video released by Manila showed a China Coast Guard ship and a much larger vessel bearing the number 164 on its hull colliding with a loud crash.
Additional footage and photos released later by the Philippine Coast Guard showed the stricken Chinese vessel still afloat but with its entire bow crumpled inward.
"The [China Coast Guard vessel] CCG 3104, which was chasing the [Filipino coast guard vessel] BRP Suluan at high speed, performed a risky manoeuvre from the [Philippine] vessel's starboard quarter, leading to the impact with the PLA [People's Liberation Army] Navy warship," Tarriela said in a statement.
"This resulted in substantial damage to the CCG vessel's forecastle, rendering it unseaworthy," Tarriela said.
At a later press briefing, Tarriella said crew members aboard the smaller Chinese vessel had been visible in its front section just before the collision.
"We're not sure whether they were able to rescue those personnel who were in front prior to the collision. But we are hoping that these personnel are in good condition," he told reporters.
Tarriela said the Chinese crew "never responded" to the Philippine ship's offer of assistance.
Gan Yu, a Chinese coast guard spokesperson, confirmed a confrontation had taken place without mentioning the collision.
"The China Coast Guard took necessary measures in accordance with the law, including monitoring, pressing from the outside, blocking and controlling the Philippine vessels to drive them away," he said in a statement.
China's foreign affairs ministry did not confirm or deny the collision when asked about it by Agence France-Presse.
The incident is the latest in a series of confrontations between China and the Philippines in the South China Sea, which China claims almost entirely despite an international ruling that the assertion has no legal basis.
More than 60 per cent of global maritime trade passes through the disputed waterway.
Speaking at a news conference, Philippine President Ferdinand Marcos Jr said the country's patrol vessels would "continue to be present" in the area to defend, as well as exercise sovereign rights over, what it considers to be part of its territory.
The Scarborough Shoal — a triangular chain of reefs and rocks — has been a flashpoint between the countries since China seized it from the Philippines in 2012.
Earlier in the confrontation, Filipino coast guard vessel BRP Suluan was "targeted with a water cannon" by the Chinese but "successfully" evaded it, Tarriela's statement said.
US deploys warships after incident
The United States deployed two warships in Scarborough Shoal on 14 August following the collision incident.
The USS Higgins, a guided missile destroyer, and USS Cincinnati, a littoral combat ship, were shadowed by a Chinese navy ship while sailing about 55km from the Scarborough Shoal.
There were no reports of any untoward incident, Tarriela said, citing information from US officials and a Philippine surveillance flight.
The US navy has staged what it calls freedom-of-navigation voyages and overflights in the South China Sea for years to challenge China's restrictions and its demand for entry notifications inthe disputed waters.
That has angered China and its forces have had close runs-in with US warships and aircraft on such patrols in international waters and airspace.
