Taiwan's president has accused China of pressuring the World Health Organization into recognizing Taiwan as a Chinese territory and says Beijing's move is "very negative" for bilateral ties.
President Ma Ying-jeou's statement of protest Tuesday represents a rare departure from his China engagement policy. Critics say Ma has hurt Taiwan's sovereignty while forging close ties with China.
On Monday, a Taiwanese lawmaker publicized a WHO document categorizing Taiwan as a Chinese province.
Taiwan and China split amid civil war in 1949, but Beijing still claims Taiwan as its territory.
Taiwan became an observer in WHO's decision-making body in 2009 after Beijing responded positively to Ma's reconciliation efforts.