The Wanshan Vessel formation conduct towing exercises in waters off Huangyan Dao in South China Sea in July, 2024. Photo: Courtesy of China Coast Guard

Philippine Coast Guard vessels 9701 and 4409, along with government ships 3002 and 3003, attempted to intrude into the territorial waters of China's Huangyan Dao and dangerously approached China Coast Guard vessels conducting routine patrols on Wednesday, said CCG spokesperson Liu Dejun in a statement. 

In response, China implemented control measures in accordance with the law and regulations, Liu said.