Police in Florissant, Missouri, said arrests were made and non-lethal rounds used after protesters refused to leave an area in front of the police department building.
Four people were arrested for trespassing after police deemed the assembly unlawful because of objects being thrown at officers. One officer was hit by a glass bottle full of paint, police said.
In videos posted to Twitter by the account @Search4Swag protesters are seen scattering after police engage the crowd.
The protests were held in response to the arrest of 17 people at a similar event the day before, according to news reports. Florissant Police charged protesters with trespassing, failure to disperse, and unlawful assembly. Credit: @Search4Swag via Storyful