The Boeing protest is underway, with hundreds of protesters arriving and chanting, "Another World is Possible!"
The police presence is heavy, with many protesters saying "there are more cops here than people!"
We have reporters on the ground getting the latest, so check our live blog for updates. We are also live tweeting, as we've done all weekend, so follow us on Twitter @ProgressIL for live updates and photos.
UPDATE 1 (11:57 a.m.): Protesters have started making and flying paper airplanes in protest of Boeing military aircraft, including the company's new construction of drones.
Meanwhile, Riverside Plaza is closed off and the surrounding area is empty.
UPDATE 2 (12:08 p.m.): Protesters are planning on marching to the Obama campaign headquarters and will hold a press conference at 2 p.m. to discuss "police brutality."
UPDATE 3 (12:24 p.m.): Here are some livestreams of video from protesters at today's rally as tweeted by Occupy Chicago.
From OccupyMusician on Ustream:
From stopmotionsolo on UStream:
UPDATE 4 (12:34 p.m.): Protesters criticizing the media, with one speaker saying "the media calls us dropouts, the media calls us hippies."
Protesters are now leaving the Boeing headquarters and are singing and dancing at the intersection of Washington and Wacker.
UPDATE 5 (12:49 p.m.): Protesters are now sitting down at Washington and Clark Streets. Speakers are slamming Chicago Mayor Rahm Emanuel for shutting down health clinics and schools.
Speakers are also speaking out against big banks, chanting "Bust up the banks!", "Hey, hey! Ho, ho! Austerity measures have got to go!" and "Banks got bailed out. We got sold out!" Some protesters are also taking seats in front of two Chase and Bank of America branch buildings.
UPDATE 6 (1:00 p.m.): More live videos from Chicago's NATO protests:
From GlobalRevolution on Livestream:
From Chicago IndyMed on LiveStream:
UPDATE 7 (1:36 p.m.) Protesters have moved down Michigan Ave. to the Obama campaign headquarters. There was an extended moment of silence at the intersection of Washington St. and Michigan Ave. as protesters sat and held up peace signs.
Millennium Park is empty and State Street is largely deserted. Outside of protesters and police, much of the downtown area is a ghost town.
UPDATE 8 (1:49 p.m.): Occupy Chicago and other protesters are at Obama headquarters, saying "Barack Obama, you broke our hearts. Go back to the Left side."
UPDATE 9 (2:46 p.m.): The Coalition Against the NATO/G8 War & Poverty Agenda alleges police brutality in Sunday's brawl with Chicago police officers. The group compared the police department to the U.S. military and is taking no blame for the behavior of protesters, laying the blame squarely on the Chicago Police Department.
After the march and sit-in outside of President Obama's headquarters, protesters seem content with staying at the location considering the beautiful weather conditions.
UPDATE 10 (2:37 p.m.): From Progress Illinois reporter, Ellyn Fortino
Hundreds of Occupy protestors gathered outside Boeing's headquarters, 100 N. Riverside Plaza, to protest the company's manufacturing of planes and drones that are used in wars and overseas attacks.
The protest was peaceful. Occupiers shot silly string and confetti in the area, while some folded white paper to make miniature airplanes. Others blew bubbles into the crowd.
After about an hour of chanting and mic checking, the crowd made it's way to President Barack Obama's campaign headquarters, located at Randolph Street and Michigan Avenue. The protestors stopped and sat in front of City Hall, criticizing Mayor Rahm Emanuel's recent budget, which closed down six mental health facilities. Occupiers said since the announcement of the closings, "people have already committed suicide."
Just before Randolph Street, the group sat on Michigan Avenue by Millennium Park silently, holding peace signs.
UPDATE 11 (5:11 p.m.): Here's a look at some of the sights from today's rally and march:
(Photos by Ellyn Fortino)