Police in Boston arrested 129 anti-Wall Street protesters early Tuesday, hours after supporters of the Occupy Wall Street movement in New York and Washington received extensions of their permits to demonstrate.

The confrontation came after the protesters, who have been in downtown Boston's Dewey Square Park for a month, sought on Monday to expand their occupation to the nearby Rose Fitzgerald Kennedy Greenway.

Authorities gave the Occupy Boston group until nightfall to retreat to the park.

The protesters ignored the deadline, yet Boston and Transit police waited till after 1:00 a.m. Tuesday before moving in to tear down tents and arrest protesters.

Protesters responded by chanting: "The people united will never be defeated," "This is a peaceful protest," and "The whole world is watching," the Boston Globe reported.

The Occupy Wall Street movement, which began Sept. 17 in Lower Manhattan's financial district, has spread to dozens of cities across the United States.

Participants in the various Occupy protests say they represent the 99 percent of the U.S. population whose economic fortunes have suffered even as those in the top 1 percent have grown richer.

Many of the occupiers are debt-laden recent college graduates unable to find jobs in an economy where the broadest measure of unemployment stands at 16.5 percent.

In New York, Mayor Michael Bloomberg said the protesters in Zuccotti Park, a privately owned property, may remain there indefinitely as long as they do not disturb the peace.

The Occupy Washington organizers succeeded Monday in persuading the U.S. Park Police to extend for four months the protesters' permit to remain in Freedom Plaza, which lies near the White House.