(CBS) — Protestors were blocking lanes of traffic on the Eisenhower Expressway near Kostner Avenue Saturday afternoon in the latest protest over recent grand jury decisions not to indict white police officers of unarmed black men in Missouri and New York.

All lanes reopened a short time after the protest started. A small group of protestors also blocked traffic on Lake Shore Drive in Hyde Park later on in the day.

Earlier this week, a Staten Island grand jury rejected criminal charges against New York Police Officer Daniel Pantaleo for performing a fatal chokehold on 43-year-old Eric Garner during an arrest in July – even though a friend of Garner’s recorded the arrest and an autopsy ruled it to be a homicide.

That decision came less than two weeks after a Missouri grand jury declined to indict Ferguson Officer Darren Wilson for the fatal shooting of 18-year-old Michael Brown in August.

Earlier this week, protestors shut down lanes on Lake Shore Drive and the Dan Ryan Expressway.