Charlotte protesters assail corporate greed

The Charlotte demonstrators had antiwar signs as well as those promoting unionized labor and the plight of undocumented immigrants. One read: "Bankrupting America" with a font and logo that mimicked Bank of America. Another declared: "Obama murders children with drones."

Participants ranged from young girls in cheerleading outfits and parents pushing strollers to Occupy Wall Street demonstrators in black shirts and red bandannas.

At least 100 police officers walked along with the parade, carrying gas masks, wooden batons, and plastic hand ties. A police helicopter hovered so low that people on the ground could feel the wind off its rotors. Organizers had pledged that the march would be peaceful.

The route of Sunday's March on Wall Street South took participants past the corporate headquarters of Bank of America and a major office hub for Wells Fargo. They are two of the nation's largest financial institutions and beneficiaries of massive taxpayer-backed loans during the 2008 bailout of the financial sector. Both banks were also criticized for roles in the home-foreclosure crisis.

Before the march, the demonstrators gathered at a park on the outskirts of Charlotte's Uptown business district. Speakers addressed the crowd from a stage in front of a banner that read "People power now."

Official convention events begin Tuesday, but thousands of delegates, officials, protesters, and journalists began gathering over the weekend.