Police walk past missing person notices of Gui Minhai (L), one of five missing booksellers from the Mighty Current publishing house and Yau Wentian (R), a Hong Kong publisher who was last year jailed for 10 years while preparing to release a book critical of Chinese President Xi Jinping, posted on top of the sign of China's Liaison Office in Hong Kong on January 3, 2016. Five missing Hong Kong booksellers were rumoured to have been planning a book about Chinese President Xi Jinping's relationship with a former girlfriend, one of the city's lawmakers said on January 3, as protesters gathered to voice anger over the case. AFP PHOTO / ANTHONY WALLACE / AFP / ANTHONY WALLACE
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