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(NECN: Alysha Palumbo - Boston) - Tensions rose Monday night as the Occupy Boston movement clashed with residents sick of the protests, and police fed up with the growing crowds.
The tent city that once filled just Dewey Square expanded further down the greenway, as some locked arms to protect their new dwellings.
Garret Kirkland of Winchester, MA said, "We were running out of space, our movement is growing by leaps and bounds and we had to expand."
Earlier Monday, Boston Mayor Tom Menino said the group doesn't have the proper permits and won't be able to stay there forever.
Mayor Menino said, "There will be a day when they'll have to leave their campsite."
But protestors didn't take too kindly to the mayor's words.
Derrick Padilla of Worcester, MA said, "This is our country, this is our city, they should be afraid of us, not us of them."
Kirkland said, "It's unfortunate that the mayor would take such a position especially considering how many people are here and involved, he has to do what he has to do and we have to do what we have to do."
That mission included marching through the streets of Boston, and rallies both on the historic Boston Common and at Charlestown's North Washington Street Bridge.
The Occupy Boston movement was bolstered Monday by hundreds of college students from throughout the city.
UMass Amherst student Anastasia Wilson said, "Students around the country are burdened with debt, they're facing health care cuts across campuses, tuition hikes and we need to fight back against the system."
Also joining the protests were members of several unions - many of whom are unemployed or underemployed in this down economy.
"They've laid people like me and other folks off, millions of us across the country and really we don't have any redress," said John Harris, who's an IBEW telephone worker from Chelsea, "and we're assembled here to say no we're sick and tired of this we're going to stand up and be counted."