China’s coast guard rammed and boarded an Indonesian fisheries patrol vessel near the Natuna Islands on Monday, in the most serious maritime confrontation in the South China Sea this year, according to Indonesian Navy officials and security sources cited by Reuters and AP.
Indonesian authorities said the crew held firm and no injuries were reported, but the boarding marked a significant escalation in Beijing’s pressure campaign against Jakarta’s enforcement operations in waters it considers part of its Exclusive Economic Zone. President Prabowo summoned China’s ambassador and ordered the Navy to increase patrols in the area.
The Philippines and Vietnam, both of which have overlapping territorial claims in the South China Sea, expressed solidarity with Indonesia. ASEAN called the incident a threat to regional stability and convened an emergency session. The United States renewed calls for freedom of navigation and reaffirmed its Mutual Defence commitments in the region.
The Natuna Sea sits at the intersection of Indonesia’s claimed EEZ, China’s expansive “nine-dash line” assertion, and Vietnamese fishing grounds — making it one of the world’s most volatile maritime flashpoints. This is not the first such incident: Indonesian vessels have been targeted near Natuna multiple times since 2020, but Monday’s boarding is the most aggressive action to date.
China’s foreign ministry said its coast guard was “fulfilling its duty to protect national sovereignty” and accused Indonesian vessels of operating illegally in what Beijing considers Chinese waters. Analysts said the timing — days after Shangri-La Dialogue speeches emphasising regional stability — underscored the widening gap between diplomatic rhetoric and on-the-water behaviour.
Indonesia under Prabowo has taken a notably firmer stance on maritime sovereignty than his predecessor, authorising expanded naval patrols and deepening defence ties with the United States, Japan, and Australia.