Three protesters were arrested by Capitol Police after they dumped bags of money on the floor inside the Senate Hart building and started throwing it around.
Several Capitol Police officers surrounded the pile of money while one officer swept up the bills and put it into evidence bags.
The incident was part of an anti-Monsanto protest where activists pretending to be biotechnology industry lobbyists were "thanking" political figures for their support.
"The USCP arrested three demonstrators in the atrium of the Hart Senate Office Building," Lieutenant Kimberly Schneider told the Washington Examiner.
"They were charged with 'Crowding, obstructing and incommoding' under D.C. Code 22-1307. All three arrestees are being processed at USCP HQ, 119 D Street, NE."
Schneider said the protestors were using real money, which will be held as evidence.
Here is a clip of the incident filmed by the protesters:
Here is video of the Capitol police sweeping up the money: