Chinese authorities have detained a Japanese man in his 50s in Shanghai, although details of the detention and the reason for it remain unknown, the Japanese Foreign Ministry said Thursday.Since 2015, 16 Japanese citizens have been detained in China on various charges including espionage. At least 10 have been indicted and nine have received prison sentences of up to 15 years.Japanese Chief Cabinet Secretary Hirokazu Matsuno said at a regular press conference in Tokyo that the government of Prime Minister Fumio Kishida has asked China, through its consulate general in Shanghai, to have an o…READ FULL ARTICLE