Arrested activists undeterred after getting arrested in Grant park Saturday night.
Occupy Chicago protesters, regenerated by weekend arrests, carried on their fight Monday for the 25th day.
Protesters returned to Jackson and LaSalle streets outside the Federal Reserve Bank, the group's rally point, to camp out overnight.
Many held signs and tried to revive the occupation after about 175 of them were arrested when the movement tried a New York-style campout in Grant Park.
Police clashed with protesters after more than 2,000 marched downtown, with the goal of setting up camp for the night in Grant Park near East Congress Parkway and South Michigan Avenue. As officers surrounded the park, a crowd of several hundred supporters gathered on Michigan Avenue, cheering them on.
Police said they warned protesters numerous times that the park closed at 11 p.m. After the demonstrators refused to budge, the arrests began at 1 a.m. Sunday.
Most of those arrested cooperated with police, and allowed officers to restrain them without resisting. One man, though, went completely limp, and several officers were needed to carry him out of the park, the Tribune reported.
Officers used CTA buses to haul away the arrestees. By Sunday afternoon, those arrested had been released.
The weeks-old protest promoting democracy and vilifying corporate greed has grown more organized with the passing days. From Saturday night's events, they posted photos and a write-up on their Web site, OccupyChi.org.
On Monday, demonstrators took an optimistic approach after the confrontation with law enforcement. They believe they have even seen an increase in occupiers.
The group plans another march Monday, around the Loop starting at 5 p.m.