Protesters Still Clashing With Police At Hong Kong University

The number of protesters stuck inside Hong Kong Polytechnic University continues to shrink. 

Those protesters have been clashing with police for several days. Anti-government demonstrators set up a heavily fortified camp on the university campus last week. Many of the protesters were reportedly college and high school students. 

Police ordered the protesters to evacuate the campus by Sunday night. But many stayed behind. Those protesters, armed with bows and arrows and gasoline bombs, clashed with riot police, who responded with tear gas, water cannons and rubber bullets. Police warned that they'd switch to using live rounds, if necessary. 

Some protesters tried to flee the campus on Monday, but they were either arrested or driven back by tear gas. By Tuesday evening local time, authorities said as many as 200 protesters were still trapped inside. 

That shrinking number is due in part to police letting protesters under the age of 18 leave without being detained. Other protesters, who were suffering from hypothermia, hunger and leg injuries, left the campus to receive medical treatment.

Hong Kong leader Carrie Lam urged the remaining protesters to surrender peacefully, noting that police would be forced to take "necessary action" if things changed.

Additional reporting from Newsy affiliate CNN.