A security official is seen in Beijing on June 4, 2019. Chinese authorities recently announced the formal arrest of blogger Yang Hengjun. (AP/Mark Schiefelbein)
A security official is seen in Beijing on June 4, 2019. Chinese authorities recently announced the formal arrest of blogger Yang Hengjun. (AP/Mark Schiefelbein)

Australian blogger Yang Hengjun arrested in China on espionage charges