Police in St. Paul, Minnesota, were filmed dragging a female anti-police brutality protester away by her legs on July 27 (video below).
Facebook user Curtis Avent filmed the incident while documenting part of the demonstration outside the governor's mansion.
Avent posted the video and wrote: "What the media was to afraid to show the public afraid to show how cops handle 100lb females throwing up peace signs not being a threat to anyone it."
"We continue to be committed to allow for peaceful protests, but we have an obligation that people are safe and follow the rules, and when that’s no longer the case we need to take action, like we did today," St. Paul Mayor Chris Coleman announced at a news conference on July 27, reports the StarTribune.
Coleman said the officers behaved "politely" and "peacefully" on July 27, but added there were some "folks who became defiant and some became dangerous."
According to St. Paul police, protesters were charged with various crimes, including disorderly conduct, unlawful assembly and public nuisance.
Demonstrators were protesting the police shooting of Philando Castile, which happened on July 6 in nearby Falcon Heights.
Castile's girlfriend live-streamed video of the immediate aftermath of the shooting, and told viewers that Castile had not reached for his gun when he was shot.
There have been anti-police brutality protests since July 7.
On July 26, police arrested 46 protesters in front of the governor's mansion, even though Gov. Mark Dayton said they could be there, The Associated Press reported.
Dayton's spokesman, Sam Fettig, said the governor was not involved in the police actions to clear the area. Dayton has been in Philadelphia at the Democratic National Convention for the week.
Police told protesters they were not allowed to block the street where the mansion sits.
Minneapolis NAACP President Nekima Levy-Pounds reportedly said the police demonstrated a "show of military force against unarmed peaceful protesters," and added: "I'm not telling the people to move. They deserve to be out here. We don't need to be treated like animals and criminals when we're simply out here demanding justice for someone who didn't deserve to be killed."
(Note: The video below is only part of Curtis Avent's video which can be viewed in full on his Facebook page.)