The five - Lau Chun-yuk, 21, Foo Hoi-ching, 21, Ko Chi-pan, 21, Chan Lik-sik, 18, and Hui Yi-chuen, 20, were said to be among around a hundred people who participated in a riot at a bridge outside the university campus on November 11.

They were arrested during a clearance operation following repeated warnings against protesters throwing stones and petrol bombs at officers below the bridge.

The five were convicted of rioting and breaching the mask ban in place.

Meanwhile, Foo and Hui were also found guilty of possession of offensive weapons - a screwdriver, a hammer and a wrench.

The court is expected to hand down sentences on October 19, with the defendants remanded in custody in the meantime.