Five leading scientists were ousted from the annual meeting of the American Diabetes Association (ADA) in New Orleans on Friday. Their crime: handing out copies of an editorial, published in the journal Diabetes Care on April 29, sharply criticizing the Trump administration’s ongoing attacks on scientific research.

Those ousted were Steven Kahn, professor of medicine at the University of Washington and editor-in-chief of Diabetes Care, who co-authored the published editorial; former ADA president Desmond Schatz of the University of Florida, Gainesville; Aaron Kelly, pediatrics processor at the University of Minnesota; Justin Ryder of Northwestern University; and Irl Hirsch, also of the University of Washington. The five were handing out reprints of the editorial outside a room where NIH director Jay Bhattacharya had been scheduled to speak. Bhattacharya cancelled and another NIH official spoke in his stead.

“They physically grabbed us, forced us out of the conference center, and now are telling us we can no longer attend this meeting,” Kelly told MedPage Today, which first reported the incident. “They’re taking our lanyards. It really has come to this in America. Censorship is real. America needs to stand up. Scientists, stand up. Physicians, stand up.”

The ADA confirmed to MedPage Today that five registered scientists had been removed from the meeting, claiming the scientists had violated the organization’s code of conduct for conferences. “These attendees were escorted out by our onsite event security because they demonstrated behavior not consistent with this code of conduct,” the ADA media team said in a statement. “They were respectfully given the opportunity to cease this behavior and chose not to which is why they were escorted out.”

“All attendees will conduct themselves in a professional and respectful manner, free from any form of discrimination, harassment, or intimidation,” the code of conduct states. “Inappropriate conduct, including but not limited to harassment; threatening or unwelcome physical or verbal actions; or disorderly or disruptive conduct such as protesting, will not be tolerated.”