"Elmo's X account was briefly compromised yesterday by an unknown hacker who posted disgusting messages, including antisemitic and racist posts. The account has since been secured," a spokesperson for Sesame Workshop, the nonprofit educational organization behind Sesame Street, said in a statement to ABC News on Monday.

Hackers broke into the X account of Sesame Street character Elmo and posted antisemitic and racist messages, the makers of the children's TV show said on Monday.

The owner of “Sesame Street” said it was working to restore control of Elmo’s social media account after the cyberattack on the fuzzy red monster, a beloved character on the children’s show.