Liberal Democratic Party President Sanae Takaichi after she was selected as Japan's new prime minister in Tokyo on October 21, 2025. Philip Fong / AFP via Getty Images

Japan raised objections Saturday after China advised its citizens to avoid visiting Japan, as a feud over the new Japanese leader's remarks on Taiwan showed no signs of dying down.

The government in Tokyo lodged a protest and its top spokesperson, Chief Cabinet Secretary Minoru Kihara, urged China to take "appropriate measures," Japan's Kyodo News Service reported.

China advised its citizens Friday to refrain from traveling to Japan in the near future. It cited earlier attacks against Chinese in Japan and what it called Prime Minister Sanae Takaichi 's "erroneous remarks" on Taiwan, which it said undermined the atmosphere for China-Japan exchange.

Kihara told reporters that it is precisely because of the differences between the two governments that multilayered communication is essential, a Kyodo report said.

China has repeatedly recommended its nationals take security precautions when in Japan over the past year, but the latest announcement appeared to be stronger in advising against travel, according to notices posted on the website of its embassy in Tokyo.

Japan is an immensely popular destination for Chinese tourists, providing a much-needed economic boost but also sparking an anti-China and anti-foreigner backlash from some. It's unclear what impact the advisory will have on the willingness of Chinese to visit Japan, but several Chinese airlines offered no-penalty refunds on previously sold tickets to Japan following the government's announcement.

The dispute suggests that Japan's already fragile relations with China could turn rocky under Takaichi, who supports building up the military to counter potential threats from Beijing and its claims to contested territory in nearby waters in the western Pacific.

Takaichi, who became prime minister last month, said in parliament that a Chinese attack on Taiwan could constitute "an existential threat" to Japan, requiring the use of force by its military.

The remark prompted strong objections from China, including a social media post from its consul general in Osaka last weekend saying "we have no choice but to cut off that dirty neck that has been lunged at us."

His comment, which was later taken down, sparked a Japanese diplomatic protest that was followed by a back-and-forth that continued all week.

China claims Taiwan, a self-governing island off its coast, as its territory and has staged threatening military drills in the surrounding waters in recent years.

Neither the United States nor Japan has official diplomatic relations with Taiwan, but the U.S. is the main supplier of defense equipment to the island's military and opposes resolution of the China-Taiwan situation by force.

Japan is a military ally of the United States and hosts American troops at several U.S. bases on its territory, including a major Navy base south of Tokyo.

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