Video | Video shows 'Vietnamese boat ramming Chinese ships' in disputed waters
Territorial disputes continue to rise over alleged ship clashes near the Paracel Islands
The foreign ministry has released the first video clips of a Vietnamese boat ramming maritime police vessels sent by Beijing after a Chinese oil rig was installed in contested waters in the South China Sea last month.
The release of the footage of the close encounters in disputed territory appears to be Beijing's latest strategy to counter accusations from its neighbours.
On Thursday, the defence ministry released video of Japanese fighter jets flying close to Chinese military aircraft.
China has stepped up efforts to rebut Hanoi's claim it violated Vietnamese territory in the Paracel Islands, called the Xisha Islands by China and Hoang Sa Islands by Vietnam.
On Friday, China's envoy to the United Nations, Wang Min, also lashed out at Vietnam and the Philippines for "infringing upon Chinese territory" in the South China Sea.
Wang said Vietnam had violated a diplomatic consensus reached in 1974 by then premier Zhou Enlai and Vietnam's then prime minister Pham Van Dong acknowledging the entire Xisha Islands belonged to China.