Amazon has apparently started removing anti-vaccine documentaries from its Amazon Prime Video streaming service. The move came days after a CNN Business report highlighted the anti-vaccine comment available on the site, and hours after Rep. Adam Schiff wrote an open letter to Amazon CEO Jeff Bezos, saying he is concerned “that Amazon is surfacing and recommending” anti-vaccination books and movies.

Anti-vaccine movies that were previously available free for Prime subscribers, like “We Don’t Vaccinate!,” “Shoot ‘Em Up: The Truth About Vaccines,” and “Vaxxed: From Cover-Up to Catastrophe,” are now “currently unavailable.”

BuzzFeed News was first to report that “Vaxxed” was no longer available. Amazon did not respond to questions about why the films are no longer available on Prime Video.