Demonstrators stage a sit-in at the Capitol in Washington, urging lawmakers to take money out of the political process, April 11, 2016.
Police have arrested more than 400 protesters who were demonstrating by the U.S. Capitol in Washington against the role of money in politics, saying the protesters engaged in "unlawful demonstration activity."
Video of the protest Monday showed a police officer saying "If you don't want to be arrested, move on back to 1st street."
U.S. Capitol Police said the demonstrators are being processed using mass arrest procedures. Some of the protestors were led away from the east front of the Capitol in plastic handcuffs.
The protest was organized by a coalition of groups calling itself "Democracy Spring" which said on its website that the demonstration was held "to demand Congress take immediate action to end the corruption of big money in our politics and ensure free and fair elections in which every American has an equal voice."
The demonstrators chanted slogans like "money out of politics." Some of them had marched from Philadelphia to Washington over the past week.
WATCH: Related video of protesters at U.S. Capitol
Copy and paste the embed code below. The code changes based on your selection.