Tariffs just went up 5%...
Around 100 people tried to leave the Polytechnic University, but were met with tear gas and rubber bullets.
In the past week, the campus has turned into a battleground as long-running anti-government protests become more violent.
A small number managed to successfully leave the campus using rope ladders before being picked up by motorcycles.
Hong Kong's Hospital Authority says 116 people have been injured and taken to hospital.
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China has gone on the diplomatic and military offensive Monday as China's Defense Minister told his US counterpart that Washington must stop "flexing its muscles" in the South China Sea. At the same time Beijing has deployed its new domestically produced aircraft carrier to the South China Sea for "training and research purposes," CNN reports. Before that it passed through the Taiwan Strait, reportedly followed closely by US and Japanese ships.
China said it would not tolerate "any Taiwan independence incidents" and urged the United States not to provoke any further problems or interference in the region.