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.

China warned students planning to study in Japan of heightened risks for Chinese citizens in the country due to a diplomatic spat.

Tokyo on Friday summoned Beijing's ambassador to Japan to protest against a top Chinese diplomat's online post about Prime Minister Sanae Takaichi, continuing a tit-for-tat spat that has run for a wee...