This happened this afternoon at about 2 PM CDT in Brooklyn Center, a northern suburb of Minneapolis. Here is a report from a CBS affiliate. Tear gas was used on demonstrators, but in the last 10 minutes, a line of police in riot gear backed away from a crowd marching down the street and police vehicles, including a SWAT team in their vehicle, bugged out. Not sure what is going on now or what is going to happen tonight in the Twin Cities.