A Hong Kong court has banned a high-profile student leader from going near the site of a now-cleared pro-democracy protest camp, as the movement enters a third month.

Joshua Wong, an 18-year-old who has become the most prominent of Hong Kong's protest leaders, was also given bail on Thursday and his case adjourned until January 14.

Wong was among a group of protesters arrested during an operation by authorities the day before to clear the protest site in the volatile Mong Kok neighborhood.

Police and court officers moved swiftly to shut down the camp on a busy road. The site had been one of three across the city occupied by protesters demanding greater democratic reforms than those allowed by Beijing.