Police arrest organiser of Hong Kong protest after rally turns violent

A prominent Hong Kong pro-democracy activist was arrested by police, his organisation said on Monday, after a protest he helped organise in the financial district a day earlier turned violent with officers firing tear gas to disperse the crowds.Ventus Lau was arrested on Sunday evening on charges of "obstruction of police administration" and violating terms set when permission was granted for the protest, the Hong Kong Civil Assembly Team said in a statement."It was primarily rioters' violent ac