Police have arrested 37 people for disorderly conduct and criminal damage in Mong Kok.
The 26 men and 11 women, aged 13 to 76, were arrested after protesters kept gathering on Sai Yeung Choi Street South, Nathan Road and Tung Choi Street last night.
They blocked roads and caused chaos and nuisance to nearby residents.
Police made repeated announcements, displayed warning banners and recorded the protesters' personal details but some of them still refused to comply with officers' instructions, so action was taken to disperse the crowds and make arrests.
Police condemned the protesters for disregarding safety and hurting public order. It said resolute enforcement action will be taken against "mobile occupations".