( KTRS ) A small crowd of protesters is snaking through streets near Chicago’s downtown early Wednesday.

The demonstrations started hours earlier after police released a dash-cam video showing the shooting death of a black teen by a white police officer. The officer was charged with murder Tuesday.

The protesters tried to block traffic on an expressway before walking toward a lakefront park. A few yelled at police officers, others chanted as they blocked a street. There was little traffic during the overnight hours.

Protest groups are expected to stage more demonstrations in the days ahead, including one at City Hall scheduled for Wednesday and another seeking to block Michigan Avenue during Friday’s holiday shopping bonanza.