Hundreds of Hong Kong medical workers and other anti-government protesters rallied in the Chinese-ruled city's financial center on Saturday, angry at perceived police brutality during more than four months of sometimes violent unrest.
Pro-democracy activists have attacked police with petrol bombs and rocks and shone lasers in their eyes. One officer was slashed in the neck with a knife.
Police have responded with tear gas, water cannons, rubber bullets and occasional live rounds, wounding several protesters, many of whom received treatment from volunteer first responders at the roadside.