Ken Tsang

The police advance came when protesters blockaded the underpass after being cleared out of other areas of the city on Tuesday.Overnight police used pepper spray and batons to remove protesters from Lung Wo Road which they said earlier had to be cleared as it was a major thoroughfare. They also arrested people fornlawful assembly

Ken Tsang, a social worker and member of the Civic Party, was taken away by plainclothes policemen

Local TV network TVB aired footage that appeared to show a group of plainclothes policeman dragging a handcuffed and unarmed protester and placing him on the ground.
They then assault him, kicking him repeatedly.
The man was named as Ken Tsang, a social worker and member of the opposition Civic Party. He was later taken to hospital
Secretary for Security Lai Tung-kwok said there wasoncern over a video cliphowing police officers who used inappropriate force against an arrested person
He said the officers seen on the video would be removed from their current duties and that an investigation would be carried out.Juliana Liu, BBC News, Hong Kon
The footage shot by broadcaster TVB has been widely shared on social media.
Accusations of police using excessive force were made when authorities fired tear gas as the protests first erupted in late September. But this incident, which took place at aroundon WednesdaGMT Tuesday was different.
The demonstrator, Ken Tsang, a social worker, had already been detained and no longer posed any threat to law enforcement.