Australian frigate sails Taiwan Strait as Beijing says PLA tracked passage

The Royal Australian Navy frigate HMAS Toowoomba transited the Taiwan Strait on Feb. 20–21, 2026, in what Australian officials and allied partners described as a routine passage during a Regional Presence Deployment, while Chinese state-backed media said the People’s Liberation Army tracked the ship “throughout the transit.”

The Anzac-class frigate, about 118 meters long, moved through the strait between Taiwan and the Chinese mainland as part of a pattern of allied naval movements that have become more frequent in recent years. Australian and Canadian statements framed the passage as consistent with international law. An Australian government source said the ship “conducted a routine transit through the Taiwan Strait,” and added that “All interactions with foreign ships and aircraft were safe and professional.” Canada’s Joint Operations Command posted that allied vessels “conducted a routine transit through the Taiwan Strait, in line with international law,” and said “Canada supports a free, open Indo-Pacific.”

Taiwanese monitoring accounts and local reporting said the frigate’s embarked MH-60 Seahawk helicopter approached the median line of the strait, prompting Taiwan’s armed forces to issue radio warnings ordering it to leave the area. Taiwan’s military monitored the ship as it steamed west of the Penghu islands, according to Taiwan News and ADIZ tracking posts. Those tactical contacts underscore the narrow margin for miscalculation when surface ships and embarked aircraft operate near the unofficial median that separates Taiwanese and mainland-controlled airspace and sea lanes.

Beijing’s response, carried in the Global Times and quoted in Chinese media, stressed a different narrative. The PLA, via state outlets and a quoted theatre command spokesman, said it “carried out full-process tracking, monitoring, and alert operations throughout the transit,” and warned the passage “sent wrong signals and heightened security risks, and the theater’s forces remain on high alert at all times and will resolutely safeguard China’s national sovereignty, security, and regional peace and stability.” Chinese reports further alleged the ship deviated toward waters northwest of the Penghu islands and that a PLA Z-10 helicopter moved quickly in the area; those specific claims have not been corroborated by Australian or Taiwanese official accounts.

The competing accounts highlight the diplomatic squeeze point that the Taiwan Strait represents. For Canberra and partners, routine transits are framed as upholding freedom of navigation and international norms. For Beijing, such movements are routinely characterized as challenges to sovereignty and a source of heightened military vigilance. The Toowoomba previously sailed the strait in 2023, a reminder that allied transits are periodic but politically sensitive.

For regional actors and commercial shippers, the practical implication is steady surveillance and occasional radio exchanges rather than immediate kinetic risk. Still, the repeated intersection of allied naval operations, Taiwanese air-space warnings, and PLA monitoring raises the political stakes in a crowded maritime corridor that carries large volumes of trade and symbolically anchors competing claims of authority.

Australian and Taiwanese officials confirmed details and published monitoring images over the weekend, while media reports and Chinese statements were dated Feb. 22 as governments and outlets released their accounts. The episode is likely to reverberate in capitals weighing how to balance freedom-of-navigation operations with risk management in an increasingly contested Indo-Pacific security environment.