(NEXSTAR) – Sesame Workshop, the production company behind “Sesame Street,” said Monday morning that it was working to regain “control” of Elmo’s X account after a hacker accessed the page to post antisemitic messages and remarks concerning President Donald Trump and the sex-trafficking investigation into Jeffrey Epstein.

“Elmo’s X account was compromised by an unknown hacker who posted disgusting messages, including antisemitic and racist posts,” a spokesperson for Sesame Workshop wrote in a statement shared with Nexstar. “We are working to restore full control of the account.”

The messages had appeared on Elmo’s X account over the weekend, The Associated Press reported. Screengrabs shared to social media appear to show that the posts contained antisemitic language and racist remarks, as well as a vulgar comment regarding President Trump.

The posts no longer appeared on the official Elmo account as of Monday morning.

Efforts to regain control of Elmo’s hacked account come only days after xAI, Elon Musk’s artificial intelligence company, apologized for its Grok AI chatbot making antisemitic statements on X.

Those posts were removed from X, and xAI issued an apology.

“First off, we deeply apologize for the horrific behavior that many experienced,” the company wrote in an X post. “Our intent for @grok is to provide helpful and truthful responses to users. After careful investigation, we discovered the root cause was an update to a code path upstream of the @grok bot. This is independent of the underlying language model that powers @grok.”