Tokyo police have arrested a 23-year-old Japanese military second lieutenant after he allegedly broke into the Chinese embassy in Tokyo with a knife, stating his intention was to "convey his views".

Beijing reports a man identifying himself as a 'Japanese soldier' broke into the Chinese embassy in Tokyo, threatening to kill diplomats.

During his meeting with the Japanese prime minister, Trump stated he did not inform allies about the Iran conflict to ensure surprise, drawing a comparison to Japan's actions at Pearl Harbor.

Japan's capital police received a record 4.5 billion yen in cash from citizens, with over 70% returned to its owners.