Japan has summoned the Chinese ambassador in Tokyo after a Chinese navy ship sailed close to what Japan considers its territorial waters in the East China Sea for the first time.The Japanese foreign ministry said the Chinese warship had entered waters that are contiguous to what Tokyo considers its territory in the vicinity of disputed islands, known as the Senkaku in Japan and the Diaoyu in China.
The incident shortly after midnight on Thursday could be a setback for signs of improvements in relations between Asia’s two largest economic powers, which had soured in recent years over their wartime history and territorial rows.
Read more Senkaku islands row reflects broader tensions between China and Japan
