A top official at the Food and Drug Administration (FDA) demanded the removal of YouTube videos of himself that were published by a physician and writer who has been critical of medical misinformation and public health officials in the Trump administration, according to a YouTube notice that was seen by the Guardian.

Jonathan Howard, a neurologist and psychiatrist in New York City, received an email from YouTube on Friday night, which stated that Vinay Prasad, who is the FDA’s top vaccine regulator, had demanded the removal of six videos of himself from Howard’s YouTube channel.

Howard’s entire channel has now been deleted by YouTube, which cited copyright infringement.