According to RTHK broadcaster, 25 people got injured in the clashes and were hospitalised. Most of them are in stable condition.
Multiple skirmishes occurred earlier in the day between opponents and supporters of Hong Kong's government.
In early September, Hong Kong Chief Executive Carrie Lam announced her decision to formally withdraw the controversial extradition bill, which had initially caused mass violent protests in the city in early June and had grown into a full-blown opposition movement.
Protesters demand not only the withdrawal of the controversial initiative but also Lam’s resignation, the retraction of the government’s classification of the violent clashes as riots, an independent inquiry into police alleged violence and the release of everyone arrested in the conflict.