Police cracked down on Hong Kong’s Polytechnic University Monday after a days-long siege on the protester-occupied campus spawned some of the most violent confrontations since the anti-government demonstrations began six months ago.

Following protracted fighting, several protesters attempted to flee the campus and avoid arrest Monday morning, but were driven back by a barrage of tear gas.
Dozens of people were arrested as clashes broke out nearby the university, including several who were seen detained outside a high-end hotel in the city’s tourist district Tsim Sha Tsui.
An unknown number of students remain hunkered behind the walls of Polytechnic University, which police are not allowing press to access.