The protesters interrupted Clinton's opening remarks by chanting "She wins, we lose" as they walked out peacefully amidst a heavy state police presence.
"Oh, I know the Bernie people came to say that. . . .We're very sorry you're leaving,'' Clinton shouted to them as they filed out in a single line toward an exit at the Performing Arts Center.
Clinton supporters chanted, "I'm with her" and "Hillary, Hillary, Hillary" before her speech resumed.
Clinton, a former U.S. senator from Chappaqua, and U.S. Sen. Sanders, a native of Brooklyn, square off in the April 19 New York primary.
Their protest continued outside on an overpass at the state college in Harrison with young Clinton supporters shouting back. No arrests were made, according to campus police.
Clinton had earlier Sanders on Thursday as she arrived for a campaign speech at Purchase College.
"I am so sick. I am so sick of the Sanders campaign lying about that. I'm sick of it,'' Clinton responded while pointing her finger at a Greenpeace activist who began by thanking the Democrat for supporting action protecting the environment from climate change.
Clinton, who has lived in Chappaqua since 1999, denied her campaign would accept money from fossil fuel proponents.
For a video of that exchange, click here.
Earlier Daily Voice coverage of Clinton's visit to Westchester County can be found here.
Ambar Lopez and Connor Fowler, members of Purchase College's Community Reporting Team, contributed to this article.
Click here to follow Daily Voice Port Chester and receive free news updates.