Police used tear gas and water cannon through protests outside the local headquarters of the China People’s Liberation Army at Hong Kong.
Protesters have been throwing gas bombs police lines, based on reports from the Reuters news agency.
Earlier on Saturday, tens of thousands marched in downtown Hong Kong in heavy rain. It was the newest demonstration in a run of pro-democracy protests which have dropped the Chinese-ruled town into the worst political crisis in years.
People took to the streets despite police efforts to obstruct any big protests. Demonstrators are indicating five years because a Chinese authorities judgment effectively gave Beijing control over the candidates to Hong Kong’s next leadership election.
Police detained several notable pro-democracy activists and three lawmakers on Friday, attempting to rein in a movement that began with anger over proposed legislation permitting extraditions to mainland China.