A senior Japanese official and the country’s military have expressed regret after a serving officer was arrested on suspicion of trespassing at the Chinese embassy in Tokyo. Tokyo police have identified the 23-year-old suspect as Kodai Murata, a second lieutenant with the Ground Self-Defence Force (SDF), and said he was suspected of bringing an 18cm (7-inch) knife onto the embassy premises. No one was injured in the incident and a blade was found in shrubbery on the embassy grounds, Japanese...