China, Japan and Taiwan
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Japan's new leader prime triggered the dispute by saying Japan could intervene in a confrontation between China and Taiwan.
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.
China is trying to impose economic costs on Japan for wading into the issue of Taiwan. But experts say the escalating dispute could ultimately hurt China too.
China's defence ministry said on Thursday that Japan will have to pay a "painful price" if it steps out of line over Taiwan, responding to Japanese plans to deploy missiles on an island some 100 km (62 miles) from Taiwan's coast.
China is turning to a well-used playbook to express its displeasure with Japan over a statement by its prime minister on Taiwan