Richmond Councilmember Tom Butt posted this video on his Facebook page.
Some protesters screamed through bullhorns, bringing the meeting to a halt.
The Contra Costa Times reports: the reason for last night's disruption is not clear, but the council has been dealing with loud disruptions at meetings, including hate speech directed at gays.
Police emptied the chambers last night. People who wanted to address the council were brought back in, in groups of five.
Richmond Mayor Gayle McLaughlin issued a statement saying: "When a handful of community members are repeatedly and willfully disrupting city council meetings, the majority of community members, which have come to address pressing issues of the city, have their free speech infringed upon."