Chinese protesters took to the streets on Sunday, to reassert their country’s claim to a disputed group of islands.
The islands, known as Diaoyu in China and Senkaku in Japan, have repeatedly strained relations between Tokyo and Beijing.
Clashes broke out between demonstrators and police in the city of Dongguan, in the southern province of Guangdong, according to Japanese media reports.
Earlier this month, Chinese activists from Hong Kong set foot on the disputed territory, in the East China Sea, and were arrested and deported by Japanese authorities.
Japanese activists later arrived in the area and sparked anti-Japan protests in cities across China.