Hundreds of Japanese people held a protest in front of the prime minister's official residence in Tokyo, demanding that Prime Minister Sanae Takaichi retract her recent erroneous remarks on Taiwan.

Japanese PM Sanae Takaichi’s remarks linking Taiwan to Japan’s "existential crisis" caters to US attempts to contain China, binds Japan’s fate to Washington’s strategy, and masks its deep fear of being discarded as a disposable ally, says a Chinese journalist and analyst.

China-Japan relations in the wake of Japanese PM Sanae Takaichi’s remarks on Taiwan represent “the most dangerous situation in the past several decades," says a Taiwan-based journalist and political analyst.

China has expressed serious concern over Tokyo’s recent military threats, warning citizens to avoid travelling to Japan.

Japan's ruling party picked conservative nationalist Sanae Takaichi as its new head on Saturday, putting her on course to become the country's first female prime minister.