Police fear radical demonstrators are causing the Mong Kok protest to spin out of control and could cause a riot.
Police Public Relations Branch Chief Superintendent Steve Hui said today some radical protesters and troublemakers have mixed with demonstrators in Mong Kok. They have verbally abused officers, attacked them with umbrellas, and thrown barriers at them.
"The violent charging acts in Mong Kok are in total contradiction of the [pro-democracy camp's] principle of peace and non-violence. The media and public figures have pointed out that the situation in Mong Kok is spinning out of control and is on the verge of turning into a riot."
He called on the demonstrators, especially students, to stay away from the Mong Kok protest sites for own their personal safety.
He also urged radical protesters to stop all illegal and radical acts endangering public safety and order.