Siege of the Chinese University of Hong Kong

The siege of the Chinese University of Hong Kong was a part of the 2019–2020 Hong Kong protests. As protesters disrupted traffic to facilitate a general strike on 11 November 2019, other protesters inside Chinese University of Hong Kong (CUHK) threw objects onto railway tracks near the University station, to which the Hong Kong Police Force responded by shooting pepper bullets at students and launching volleys of tear gas into the campus.

Source: Wikipedia — Siege of the Chinese University of Hong Kong (CC BY-SA 4.0)