Protesters, police clash at NATO summit (27 images)
Protest organizers at the NATO summit in Chicago said some protesters were injured in a clash with police late Sunday after a day of mostly peaceful protests. A Chicago city official, speaking off the record, told CNN protesters identified as aggressors were "extracted" after an estimated 50-75 protesters threw objects at police and refused to leave the area. A Chicago city official told CNN protesters identified as aggressors were "extracted" after an estimated 50-75 protesters threw objects at police and refused to leave the area. Approximately 20,000 protestors marched on NATO's biannual summit.
Police clash with protestors outside of the 2012 NATO Summit at the McCormick Place convention center in Chicago, May 20, 2012. Approximately 20,000 protestors marched on NATO's biannual summit. UPI/Mark Cowan
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