ABC News’ Olivia Katrandjian reports:

The Occupy Wall Street movement, growing to more than 1,500 people in its second week, called for a march in lower Manhattan today at 3 p.m. to “show that it is time that the 99% are heard.”

“We are unions, students, teachers, veterans, first responders, families, the unemployed and underemployed. We are all races, sexes and creeds. We are the majority. We are the 99 percent. And we will no longer be silent,” read a post on the Occupy Wall Street website.

The protests started on Sept. 17. On Friday, about 1,500 demonstrators took their protest to the New York Police Department headquarters.

An elderly group leads a march up Broadway towards Police Headquarters, Friday, Sept. 30, 2011, in New York. (Louis Lanzano/AP Photo)

The demonstrators, who are speaking out against corporate greed and social inequality, say they have been unnecessarily roughed up by police.

The turnout may have been so high because a rumor circulated that the band Radiohead would perform at the event. The band did not appear at event.

New York City Mayor Michael Bloomberg addressed the demonstrations on the WOR 710 radio show Friday, according to multiple media reports.

“The protesters are protesting against people who make $40,000 to $50,000 a year who are struggling to make ends meet. That’s the bottom line,” Bloomberg said.

When asked how the NYPD would handle protests, Bloomberg said that while people have the right to protest, others also have the right “to walk down the street unmolested.”

The protests have spread across the country, with events popping up in Boston, Chicago and dozens of other cities across the country in solidarity with Occupy Wall Street.

In Albuquerque, N.M., there were more than 500 protestors, and demonstrators in Spokane, Wash., set up a tent city before police enforced a no-camping rule.

A march and rally was held in Boston Friday called “ Take Back Boston” run by the Right to the City alliance, a national organization that “seeks to create regional and national impacts in the fields of housing, human rights, urban land, community development, civic engagement, criminal justice, environmental justice, and more,” according to its website.

Police estimated about 3,000 people attended the events Friday.

“We are targeting Wall Street, in particular the big banks and corporations,” Rachel Laforest, the executive director of the Right to the City Alliance told ABC News. “The goal is to create a national narrative and have it be known how the states are taking state revenues that are being funneled to banks and corporations and then you layer on top of that the fact that they’re not obligated to pay their fair share of taxes, and so that’s billions and billions of dollars that could be put toward job creation and creating solutions to the housing crisis.”

Today’s events in Boston will continue with a “Take Back the Block” festival. At least 1,500 have registered for the festival.

Along with New York and Boston, an Occupy Chicago movement has emerged, with nearly 100 people gathering in front of the Chicago Federal Reserve Bank. The protests have been peaceful and no arrests have been reported.

Occupy Los Angeles protests which have also been small in numbers, has called for a march today at 10 a.m. from Pershing Square downtown to City Hall.