The New York Post published a story on Wednesday that suggests Democratic presidential nominee Joe Biden engaged in overt political corruption while he was vice president. But people are not allowed to read it, according to Facebook and Twitter.

The social media giants banned the circulation of the story on Wednesday afternoon due to “the lack of authoritative reporting on the origins of the materials included in the article,” a Twitter spokesperson told the Washington Examiner. As a result, users are unable to share the article in posts or direct messages. Twitter also locked the New York Post out of its account.