So-called “anti-fascist” protesters in Minnesota descended on the Hennepin County jail, burning the county’s flag and replacing it with their own “antifa” flag, it was reported Thursday.

A Hennepin County spokeswoman told CNS News that protesters gathered outside the Hennepin County Public Safety Facility Monday evening and took down the county’s flag, replacing it with their own.

“This lasted for under 30 minutes at which time we replaced the flag with a new one,” she said. “We do not condone the actions taken Monday.”

Video posted by CNS News showed dozens of protesters cheering as antifa’s red, black and white “Antifascist Action” flag flapped in the wind in front of the jail.

According to the Star Tribune, the protest started outside the headquarters of the Republican Party of Minnesota before heading northwest to the jail.

“A few in the group blocked the light-rail tracks, forcing a train to reverse back to the Government Center station,” the Tribune reported. “An effigy in khaki pants and a white shirt was burned on the jail plaza but went out as firefighters arrived.”

The protest was in response to a white nationalist rally in Charlottesville, Virginia, that turned deadly on Saturday during clashes with antifa and Black Lives Matter activists. A reported Nazi sympathizer rammed his car into a crowd of counterprotesters, killing a person and injuring 19 others. Several journalists have reported being attacked by antifa protesters while covering the carnage. President Trump on Tuesday blamed “both sides” for the violence.

The violence in Charlottesville has spurred anti-hate demonstrations across the country.