House Speaker Nancy Pelosi (D-Calif.) was heckled during a speech she gave before a gathering of liberal activists Tuesday in Washington. 

A short YouTube video recording has emerged of the flap at the "America's Future Now" conference. Protesters unfurled at least three banners, one of which read "Stop Funding Israeli Terror," likely a reference to the Gaza flotilla controversy. 

At points, Pelosi can be heard raising her voice trying to speak over the protesters' shouts. During the video, rounds of applause for the Speaker can also be heard. 

President Barack ObamaBarack Hussein ObamaC-SPAN forced into 7-second delay after caller's racist tirade against Obama Judge dismisses Bevin lawsuit against Kentucky Medicaid activists Primary challenge to Trump? It could help him in 2020 MORE has also been interrupted by protesters at campaign events twice this year; each time over the "Don't ask, don't tell" policy against openly gay military service members. 

Watch it here: 

(h/t PostPolitics via OurFuture.org)