Key facts
- China's coast guard conducted patrols east of Taiwan, which Taiwan condemned as harassment.
- Taiwan rejected China's claims of jurisdiction in the waters east of the island.
China and Taiwan are in a verbal dispute over Chinese coast guard patrols east of the island, which Taiwan calls harassment. Meanwhile, Chinese authorities detected suspected Japanese surveillance aircraft near Taiwan following maritime boundary talks between Japan and the Philippines.

The escalating maritime disputes and increased military surveillance in the waters east of Taiwan heighten regional tensions and underscore the complex geopolitical dynamics between China, Taiwan, and neighboring nations like Japan.
China and Taiwan are engaged in a verbal dispute over the legality of Chinese coast guard patrols conducted in waters east of the self-ruled island. Taiwan's government accused Chinese ships of harassing commercial vessels by demanding information about their origin and destination, asserting jurisdiction in waters where they claimed China had no right to intervene.
China's Taiwan Affairs Office, through spokesperson Zhang Han, stated that the patrols were a lawful act to safeguard national sovereignty and maritime rights. She added that China would continue to strengthen its control over these waters and that such actions were normal, including patrols near the Taiwan-controlled Pratas Islands.
Taiwan's Foreign Minister Lin Chia-lung described China's actions as using 'law enforcement' as a pretext for expansion and called China a 'problem-maker' damaging the status quo. Taiwan's cabinet Secretary-General Xavier Chang echoed these sentiments, stating that China's actions endanger Taiwan's sovereignty and violate international law, vowing not to cede any 'blue maritime territory'. Beijing, however, does not recognize Taiwan's government claims and has rejected offers of talks, labeling President Lai Ching-te a 'separatist'.
Mainland Chinese maritime authorities detected what analysts believed to be Japanese surveillance aircraft southeast of Taiwan on Monday, after Beijing bolstered patrols around the waters following border talks between Japan and the Philippines. Beijing's maritime law enforcement twice detected what appeared to be fixed-wing aircraft belonging to the Japan Coast Guard during its patrol southeast of Taiwan on Monday, according to a video published on Tuesday by Yuyuan Tantian, a social media account affiliated with mainland state broadcaster CCTV. The two island countries announced formal negotiations to delimit their overlapping maritime boundaries and exclusive economic zones (EEZ) in the western Pacific Ocean, located east of Taiwan.