YouTube has removed video footage of a U.S. Senate hearing — at least the second time the platform has censored a Senate hearing.

YouTube took down "two videos of doctors testifying under oath," Sen. Ron Johnson (R-WI) tweeted on January 27. The testimonies, uploaded to YouTube by Johnson, were during a December 8 Senate Homeland Security Committee hearing that discussed early treatments for COVID-19. Previously, the platform also deleted a video of election complaints from December.

One of the newly deleted videos included an opening statement from the president of the Frontline COVID-19 Critical Care Alliance, Dr. Pierre Kory. He brought forth evidence from a study about the possibility of Ivermectin as a successful treatment for COVID-19. Ivermectin is "a cheap and widely available drug that treats tropical diseases caused by parasites," according to The Wall Street Journal, but there have also been studies that indicate it could be an effective treatment for COVID-19 as well.

"In the last 3-4 months, emerging publications provide conclusive data on the profound efficacy of the anti-parasite, antiviral drug, anti-inflammatory agent called ivermectin in all stages of the disease," Dr. Kory said in his statement.

YouTube bans treatment information that doesn't align with the World Health Organization or other approved sources and considers it misinformation.