A 21-year-old student shot by police has been arrested for unlawful assembly, as a fresh round of clashes broke out in Hong Kong on Tuesday.

The student, named as Mr Chow by police, remains in a serious condition in hospital.

Another activist, Mr Woo, 19, who was in the vicinity when the shooting occurred, has also been arrested for unlawful assembly, attempted robbery for allegedly trying to snatch an officer’s gun, and possession of offensive weapons, police confirmed.

There were stand-offs on Tuesday in several neighbourhoods throughout the financial hub, including in the central business district around lunchtime, where some office workers joined in demonstrations.

Activists again disrupted public transport, starting around 7am, purposefully targeting the city’s bustling morning commute hours by holding subway car doors open or hurling objects onto the tracks, including petrol bombs.

At one station, a train halted in a tunnel where debris was strewn across the rails, forcing hundreds of passengers to walk along the tracks to the platform.