Chinese Foreign Minister Wang Yi says Japan has "crossed a red line” with comments by the country's new leader suggesting a potential military intervention over Taiwan

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.

As China reportedly mulls a ban on Japanese seafood amid a standoff between the Asian neighbors, Taiwan's leader shows support for Tokyo, with his lunch.

Less than a month into her term, Japan's conservative leader has stirred tensions with China by suggesting a Chinese move against Taiwan could prompt a Japanese military response.

China called Japan's plan to deploy missiles on an island near Taiwan a deliberate attempt to "create regional tension and provoke military confrontation" on Monday, as a diplomatic dispute simmers between the two nations.

Tension between Japan and China has escalated over the new Japanese leader's suggestion Tokyo could intervene militarily if Beijing attacks Taiwan.