These problems first took root as China prepared to assume control of Hong Kong from Britain, in 1997. Concerned that the transition would scare off foreign investors, Chinese leaders tried to woo real-estate tycoons and other business elites by giving them key roles overseeing the city’s future governance.

Senior party members previously alleged they had been told to disband or face severe consequences, including possible arrest.

The individual was calling for a deeper investigation into the devastating apartment complex fire last month in Hong Kong that killed more than 160 people and displaced thousands