During the third Democratic presidential primary debate, protestors interrupted former Vice President Joe Biden as he was about to answer a question about how a significant setback shaped him.

To viewers at home, it was not immediately clear what the protestors were saying. But Jess Davidson, executive director of the advocacy organization End Rape on Campus, confirmed to TIME that the group was chanting about the Deferred Action for Childhood Arrivals (DACA).

Davidson also tweeted that the protestors were chanting “we are DACA recipients. Our lives are at risk.” She also wrote that at least some protesters got on the stage.

The protestors were yelling, “we are DACA recipients. Our lives are at risk.” Unclear if they were TSU students. #DemDebate #DemocratDebate

— Jess Davidson (@DavidsonJess22) September 13, 2019

Davidson told TIME via Twitter that she was “in the front row of the side stand near them and watched them be escorted out.”

Another person also tweeted a video of a man wearing a shirt that read “Defend DACA, Abolish ICE, citizenship for all” being escorted out of the debate.