Police in New York City have arrested several Occupy Wall Street protesters who were marching down the streets of the financial district.

The march and arrests came after the protesters learned early Friday that they would be allowed to stay in the park where they are camped, instead of having to clear out the area for cleaning.

The protesters had earlier been told to leave privately owned Zuccotti Park by early Friday morning so the owners could clean the area, which they say has become filthy during the occupation. Instead, the protesters cleaned the park overnight. Police have increased security in the area.

Also Friday, police in Denver, Colorado, advanced on a public square at the state capitol building where anti-Wall Street protesters were camping out.

The officers moved into the square in the early morning hours, ordering the protesters to dismantle their tents and vacate the area.

And late Thursday in Seattle, Washington, police arrested 10 protesters who refused to leave their encampment at a city park.

The Occupy Wall Street protest began on September 17 with a small group of activists accusing what they call “corporate America” of fostering a growing economic divide between the wealthy and the poor and middle class. The number of protesters has grown, capturing the attention of news outlets and inspiring similar demonstrations across the U.S.